pseudoephedrine

Allergic reactions may last for varying lengths of time. They may take a few hours to a few days to disappear. If the exposure to the allergen continues, such as during a spring pollen season, allergic reactions may last for longer periods such as a few weeks to months.

Dry coughing at night can disrupt your sleep and make you drowsy the next day. Learn about why dry coughing at night occurs and how you can stop or ease symptoms.

Allergists recognize four types of allergic reactions: Type I or anaphylactic reactions, type II or cytotoxic reactions, type III or immunocomplex reactions and type IV or cell-mediated reactions.

Pimples are areas of skin inflammation with pus in the center. Cold sores are fluid-filled blisters. Pimples are caused by bacterial overgrowth and inflammation. Cold sores are caused by infection with herpes simplex viruses (HSV-1 and HSV-2). Benzoyl peroxide and sometimes antibiotics treat acne. Antiviral medications accelerate the healing process of oral herpes.

You can hasten your dog's recovery from kennel cough by making sure the animal gets plenty of rest, takes enough fluids, and eats a nutritious diet.

The safety of giving infants and children over-the-counter (OTC) cold and cough medicine is important for caregivers to understand. While there is no "gold standard" recommendation for giving infants and children OTC cold and cough medicine for fever, aches, cough, and runny nose, a few standards have been recommended.

Having a cold sore does not necessarily mean you have an STD. Most cold sores are caused by herpes simplex virus type 1 (HSV-1), which typically is not transmitted by sexual contact.

Cold sores (labial herpes) are caused by herpes simplex virus type 1 infection and often appear on the mouth and lips. Read about treatment causes, symptoms, treatment, and diagnosis of oral herpes.

The common cold (viral upper respiratory tract infection) is a contagious illness that may be caused by various viruses. Symptoms include a stuffy nose, headache, cough, sore throat, and sometimes a fever.

Learn how to stop coughing attacks without medicine at night and at other times naturally. Learn about 19 tips to stop nighttime and persistent cough. Causes of excessive coughing include prescription medications, allergies, cigarette smoke, heart disease, and infections. Home remedies include natural herbs and supplements like ginger, honey, turmeric, and mint.

There are many types of coughs, such as dry cough, wet cough, barking cough, whooping cough, stress-induced cough, acute cough, and chronic cough. A cough is a symptom of an underlying condition or disease. Treatment of cough as a symptom is generally with OTC lozenges and liquids. The cause of the cough will be necessary to treat.

An allergy refers to a misguided reaction by our immune system in response to bodily contact with certain foreign substances. When these allergens come in contact with the body, it causes the immune system to develop an allergic reaction in people who are allergic to it. It is estimated that 50 million North Americans are affected by allergic conditions. The parts of the body that are prone to react to allergies include the eyes, nose, lungs, skin, and stomach. Common allergic disorders include hay fever, asthma, allergic eyes, allergic eczema, hives, and allergic shock.

When you're feeling sick, it can be difficult to distinguish the symptoms of a COVID-19 infection from the symptoms of the common cold or the flu (influenza). While fever is common with the flu and COVID-19, sneezing is typically only associated with colds. Though sore throats are typical with colds, they are uncommon with COVID-19 infections and the flu.

According to recent studies, COVID-19 symptoms of loss of smell and taste typically begin 4-5 days after other symptoms have appeared and may last 7-14 days.

Yes, it is possible to suddenly become allergic to cats, since various allergies can develop at any point in your life, such as a pet allergy.

The effects of drinking both room temperature and cold water vary by person, specifically by health, age, and the amount being consumed.

If you have diabetes and catch a cold or the flu, can be more difficult to recover from infections and their complications, for example, pneumonia. Home remedies and over-the-counter (OTC) drugs used for the treatment of the signs and symptoms of colds and the flu may affect blood sugar levels in people with diabetes. Some medications are OK to take if you have diabetes get a cold or the flu including nonsteroidal anti-inflammatory drugs or NSAIDs, like acetaminophen (Tylenol) and ibuprofen (Motrin) to control symptoms of fever and pain. Most cough syrups are safe to take; however, check with your pediatrician to see what medications are safe to give your child if he or she has type 1 or 2 diabetes. If you have diabetes and are sick with a cold or flu, you need to check your blood sugar levels more frequently. Continue taking your regular medications. Eat a diabetic low-glycemic index diet rich in antioxidants. To prevent colds and the flu drink at least eight 8-ounce glasses of water a day. To replenish fluids, drink sports drinks like Gatorade and Pedialyte to replenish electrolytes. Avoid people who are sick, sneezing, coughing, or have other symptoms of a cold or flu.

Seasonal flu, colds, and allergies are common ailments affecting most people all round the year. You must always be cautious of any medication that you take. This is especially true in pregnancy and during breastfeeding, given the effects these drugs may have on the unborn or breastfed child.

Genital herpes and cold sores (oral herpes) are the names given to two types of infection caused by the two types of herpes simplex virus (HSV): HSV-1 and HSV-2.

Tylenol is a well-known brand of acetaminophen and it is safe and effective for fever and pain.A void combined products like Tylenol Cold and Flu while you are breastfeeding.

Common food allergies include milk, eggs, peanuts, tree nuts, sesame, soy, fish, shellfish, and wheat. Here are 20 of the top food allergies.

Coughing up blood may be caused by benign conditions such as a throat infection or very serious conditions such as lung cancer. Learn when to go to the ER.

It is common to get a cold and the flu during pregnancy. Find out if it affects the baby and how to take care of yourself.

What is whooping cough and how long does whooping cough last? Learn more about whooping cough and how to recover from whooping cough.

Fragrances and preservatives in cosmetics may cause allergic reactions in some people. Symptoms include redness, itching, and swelling after the product comes in contact with the person's skin. Treatment typically involves the use of over-the-counter cortisone creams.

Viruses cause the common cold and the flu. Early symptoms and signs for a cold and the flu are similar, however, flu symptoms are typically more severe than cold symptoms. Cold and flu viruses are transmitted typically via coughing or sneezing.

Chronic cough is a cough that does not go away and is generally a symptom of another disorder such as asthma, allergic rhinitis, sinus infection, cigarette smoking, GERD,  postnasal drip,  bronchitis,  pneumonia,  medications, and  less frequently tumors or other lung disease. Chronic cough treatment is based on the cause, but may be soothed natural and home remedies.

Cold sores are a type of blister that may show up clear and then become cloudy. Treat a cold sore under your nose with home remedies, topical creams and ointments, and prescription medications.

Before treating a cold, the flu, or allergies with over-the-counter (OTC) medications, it's important to know what's causing the symptoms, which symptoms one wishes to relieve, and the active ingredients in the OTC product. Taking products that only contain the medications needed for relieving your symptoms prevents ingestion of unnecessary medications and reduces the chances of side effects.

Cough is a symptom of COVID-19 that can linger for weeks even after the infection has cleared up. Here are 9 tips for stopping a COVID-19 cough.

What is the difference between cold sores and herpes? Cold sores are painful, unsightly sores that usually pop up around your mouth. Certain medications, home care and alternative therapies may help you get rid of cold sores fast.

Hay fever (allergic rhinitis) is an irritation of the nose caused by pollen and is associated with the following allergic symptoms: nasal congestion, runny nose, sneezing, eye and nose itching, and tearing eyes. Avoidance of known allergens is the recommended treatment, but if this is not possible, antihistamines, decongestants, and nasal sprays may help alleviate symptoms.

Can you develop allergies as an adult? Learn about what causes sudden adult-onset allergies and how you can recognize the symptoms.

What is the difference between bronchitis and COVID-19 (Coronavirus)? Learn how to recognize the symptoms of bronchitis and COVID-19 to help you treat either illness. Bronchitis or “chest cold” refers to the inflammation of the airways (bronchial tubes) in the lungs. Air passes through the lungs within a network of tubules called bronchial tubes. Bronchitis is often associated with persistent, nagging coughs with mucus. Learn more about when a cold becomes bronchitis.

Adenovirus infection, particularly Ad14, or the "killer cold virus" has been on the increase in the past two years. Symptoms range from those experienced with colds, sore throat, bronchitis, pneumonia, diarrhea, pinkeye, fever, bladder infection, and neurological conditions. Diagnosis and treatment options need to be discussed with your physician.

The common cold is a viral infection that affects your nose and throat. There is no cure for the cold while breastfeeding, so you’ll need to give it time to clear up.

The most common food allergies are to eggs, nuts, milk, peanuts, fish, shellfish, strawberries and tomatoes. Symptoms and signs of a food allergy reaction include nausea, vomiting, diarrhea, abdominal pain, itching, hives, eczema, asthma, lightheadedness, and anaphylaxis. Allergy skin tests, RAST, and ELISA tests may be used to diagnose a food allergy. Though dietary avoidance may be sufficient treatment for mild allergies, the use of an Epipen may be necessary for severe food allergies.

Eye allergy (or allergic eye disease) are typically associated with hay fever and atopic dermatitis. Medications and cosmetics may cause eye allergies. Allergic eye conditions include allergic conjunctivitis, conjunctivitis with atopic dermatitis, vernal keratoconjunctivitis, and giant papillary conjunctivitis. Dry eye, tear-duct obstruction, and conjunctivitis due to infection are frequently confused with eye allergies. Eye allergies may be treated with topical antihistamines, decongestants, topical mast-cell stabilizers, topical anti-inflammatory drugs, systemic medications, and allergy shots.

Children's cough causes include infection, acid reflux, asthma, allergies or sinus infection, whooping cough, and exposure to irritants. Treatment for a child's cough include cough medicine for children over the age of four.

Human body is capable of maintaining a steady core temperature between 97°F and 99°F. However, it is essential to layer up in cold weather and wear comfortable clothes in warm weather, so that we stay protected from extremes of temperature.

About 20% of cases of cold sores are caused by herpes simplex virus type 2 (HSV-2), and approximately 80% of cold sores are caused by herpes simplex virus type 1 (HSV-1). Cold sores are transmitted by sharing utensils and razors, kissing, and oral sex. There is no cure for cold sores.

COVID-19 body aches feel like dull muscle pain and can affect the shoulders, lower back, or legs. Learn more about coronavirus symptoms. Check out the center below for more medical references on the coronavirus, including multimedia (slideshows, images, and quizzes), related diseases, treatment, diagnosis, medications, and prevention or wellness.

The common cold or viral rhinitis is an upper respiratory infection caused by several types of viruses. It is one of the most common infectious diseases affecting humans. A common cold may typically follow a certain pattern of progression that has four different stages.

Here are thirteen tips to calm an allergy attack and put an end to constant sneezing, itching, and congestion.

Acetaminophen (Tylenol), ibuprofen (Advil, Motrin) and naproxen (Aleve) can all be used for pain relief from COVID-19 body aches if they are taken in the recommended doses.

Milk allergy reactions may cause immediate or delayed symptoms. Learn to spot the signs and what foods to avoid if you have a dairy allergy.

The allergic cascade refers to allergic reactions that happen in the body in response to allergens. A variety of immune cells and chemical messengers participate in the allergic cascade. Symptoms of the allergic cascade range from mild swelling and itching to full-blown anaphylactic shock. Allergen avoidance and medications are used to prevent or treat allergies.

Indoor allergens are substances that can cause an allergic reaction in some people. Common sources of indoor allergens include dust mites, cockroaches, molds, pets, and plants. Avoiding indoor allergens is one way to reduce allergy and asthma symptoms.

Since avocado is classified as a fruit and not a tree nut, you should be able to eat avocados even if you have a nut allergy. However, some studies have shown that avocados have similar proteins as chestnuts. So if you’re allergic to chestnuts, you may have to avoid avocados.

Infection with COVID-19 (2019 novel coronavirus, 2019-nCoV) causes respiratory problems in humans. Transmission of COVID-19 occurs mainly through contact with respiratory sections from an infected person, however, fecal contamination may also spread the virus. Symptoms start off flu-like and progress to coughing, fever, shortness of breath, shaking chills, headache, loss of sense of taste and/or smell, muscle pain, and sore throat. Treatment focuses on supportive care and symptom relief. COVID-19 vaccines are available.

Viruses cause the common cold and most sinus infections. Bacterial and fungal infections may also cause a sinus infection. Signs and symptoms of colds and sinus infections include nasal irritation or dryness, sore throat, stuffy nose, nasal discharge/congestion, sneezing, and cough. Additional symptoms of sinus infections include sinus pressure behind the cheeks or eyes, facial pain when pressure is applied, bad breath, and thick yellow or green mucus. Treatment focuses on symptom relief.

Though different viruses cause the common cold and influenza, the two respiratory illnesses share many signs and symptoms. Flu symptoms tend to cause more serious, harmful problems than a cold.

Without treatment, allergic conjunctivitis symptoms could last the entire time that your critical allergen is present — which can vary greatly.

Whooping cough (pertussis) is a highly contagious respiratory infection caused by the bacteria Bordetella pertussis. Early whooping cough symptoms are a runny nose, sneezing, low-grade fever, a mild cough with the cough gradually becoming more severe. Whooping cough commonly affects infants and young children but can be prevented with vaccine immunization.

You cannot get rid of cold sores overnight. There is no cure for cold sores. However, to speed up the healing time of a cold sore, you can consult with your doctor and take prescription medications such as antiviral tablets and creams. A cold sore may go away without treatment within a week or two.

Having an ordinary cold shouldn't be harmful to the baby or mother. Pregnant women are highly likely to pick up a cold at some time during pregnancy because it's normal to catch two or three colds a year. A healthy lifestyle is a must to keep the immune system strong and to prevent colds.

A nut allergy develops when the body's immune system becomes oversensitive to a particular protein in a nut. Nuts that are the worst for allergies include peanuts, walnuts, pecans, almonds, Brazil nuts and pine nuts.

People infected with COVID-19 can still be contagious even when they stop feeling sick, so precautionary measures should continue for at least 2 weeks after symptoms disappear and until the COVID-19 test result is negative. Ideally, patients should be quarantined at home or an institution for 2 weeks after the symptoms completely disappear.

You may take over-the-counter (OTC) treatment after consulting with the physician because these are generally safe. OTC medications for colds and flus include acetaminophen, guaifenesin syrup and saline nasal drops or spray. You can also use natural remedies to treat a cold during pregnancy.

Cinnamon is a popular spice in many dishes. Cinnamon gives dishes a distinct flavor. Only a small percent of people experience allergic reactions after ingesting or coming into contact with cinnamon.

While less common, COVID-19 can affect your skin. COVID toes and fingers refer to rashes and discoloration on the toes and fingers of people infected with the virus.

In a patient with COVID-19, SpO2 levels should stay between 92%-96%. Low oxygen levels that drop below this threshold require medical attention.

Cold symptoms are part of your body’s healing processes. Most of the time, it does not require any help. However, you can get rid of a cold faster, even overnight, by resting, drinking hot fluids, blowing your nose, gargling with salt water, taking a hot shower, using a humidifier and taking OTC pain relievers and decongestants.

Cold weather can tighten the muscles and joints, leading to muscle aches and pain.

About 60 percent of the body is made up of water. It forms a major part of the blood. The cells and the body cannot function right if the water levels go down. Drinking cold water often causes “cold stress” in the body.

Pleurisy is a painful lung condition that makes it hard to breathe. Learn what causes it, how it's diagnosed, what you can do to treat it, and if COVID-19 causes it.

When COVID-19 leads to ARDS, a ventilator is needed to help the patient breathe. ARDS reduces the ability of the lungs to provide enough oxygen to vital organs.

Learn how the signs and symptoms of a sinus infection are different from those caused by COVID-19.

Lungs are the main organs affected by COVID-19; however, the virus can also affect other organs, such as the kidneys, brain, and liver.

Avoiding allergy triggers at home is one of the best ways to prevent allergy symptoms. Controlling temperature, humidity, and ventilation are a few ways to allergy-proof the home. Cleaning, vacuuming, and using HEPA air filters also helps control allergies.

A food allergy is a condition that causes your immune system to fight against a particular part of food — which is called an allergen. Food allergies can be hereditary — that is, parents can pass the likelihood of developing a food allergy to their children through genes that code for inherited traits.

Due to a higher blood flow in the head and neck than in the rest of the body, 40 to 45 percent of body heat is lost through the head and neck.

Both sinus infections and allergies (allergic rhinitis) cause symptoms such as runny or stuffy nose and fatigue. Sinus infection (known as sinusitis) is inflammation of the sinuses, caused by infection from bacteria, viruses, and/or fungi (molds). Allergic rhinitis occurs when certain allergies cause nasal symptoms. When a person with allergies breathes in an allergen, such as pollen, dust, or animal dander, symptoms such as runny or stuffy nose, itching, sneezing, and fatigue occur.

A robust immune system protects you from getting sick following exposure to germs and viruses. Yes, recovering from COVID-19 makes your immune system stronger.

COVID-19 infection can cause a fever or high body temperature of 100.4°F or higher.

A body temperature of 100.4 degrees F or higher is generally seen in people with COVID-19, although not everyone who is infected with the virus will develop a fever. Symptoms of COVID-19 may appear 2-14 days after exposure to infection. Other COVID-19 symptoms may include cough, runny nose, body aches, headache, sore throat, difficulty breathing, nausea with or without vomiting, diarrhea, loss of taste, loss of smell, and abdominal pain.

The CDC recommends that anyone who is exposed to COVID-19 should test four to five days after their suspected exposure.

Mosquito bite allergies can cause issues if untreated. Learn the signs of a mosquito bite allergy, what causes it, and what you can do to treat it.

Seasonal allergies are common and tend to ramp up during the spring and summer. Learn about how to get rid of seasonal allergies fast with these 13 home remedies.

The majority of stinging insects in the United States are from bees, yellow jackets, hornets, wasps, and fire ants. The severity of reactions to stings varies greatly. Avoidance and prompt treatment are essential. In selected cases, allergy injection therapy is highly effective.

Latex allergy is a condition where the body reacts to latex, a natural product derived from the rubber tree. The reaction can either be delayed and cause a skin rash or immediate, which can lead to anaphylaxis. Avoiding latex is the most effective way to prevent an allergic reaction.

Although not a typical symptom of COVID-19, neurological symptoms, such as dizziness, are associated with coronavirus infection.

Research shows that the COVID-19 pandemic has had a significant effect on sleep and dream activity in healthy adults.

Learn what medical treatments can ease allergic conjunctivitis symptoms and help speed up your eye allergy recovery.

Peanut allergies cause signs and symptoms that include hives, itching, redness, and a rash. Severe reactions may cause decreased blood pressure, lightheadedness, difficulty breathing, nausea, and behavioral changes. Someone with a peanut allergy should have an EpiPen with them at all times.

If you have had COVID-19, can you get it again? Yes, COVID-19 reinfection is rare but possible. Learn what symptoms to look for and how to protect yourself.

COVID-19 can cause upper back pain as well as other body aches. Back pain can even linger months after infection. Learn about what causes back pain with COVID-19.

Whooping cough (pertussis) is a highly contagious respiratory infection caused by Bordetella pertussis. Whooping cough symptoms include severe coughing fits and whooping sound produced during inhalation. The bacteria spreads via airborne droplets produced during sneezing or coughing. There is a whooping cough vaccine that is typically administered during childhood vaccinations.

Although rare, COVID-19 may present with only sore throat in about 5%-10% of cases. COVID-19-related sore throat is relatively mild and lasts no more than 4-5 days.

During certain seasons, allergies can make you miserable. Learn what causes allergy flare-ups during spring and summer.

According to recent studies, it takes about 14 days after receiving the COVID-19 booster vaccine for your immune system to offer protection from the virus.

The most common nut allergies are cashew, walnut, hazelnut and pistachio. In the U.S. the most common nut allergy is cashew, followed by walnut. In the U.K. the most common nut allergy is hazelnut.

Allergies happen when your body's immune system reacts to certain substances as though they are harmful. Allergy symptoms may not go away unless you avoid your triggers, stick to your medications, find the right combination of medications, and consider surgery.

Fall allergies can cause symptoms such as sneezing, congestion, and sinus headache. Learn more about causes, treatment, and prevention of fall allergies.

While no scientific evidence exists claiming to avoid alcohol before or after the COVID-19 vaccine, health officials still advise against drinking a week before or after.

According to the CDC, it's not common for newborns to be diagnosed with COVID-19. But there have been a few cases of newborns testing positive for the virus.

Congestion can be the only symptom of COVID-19 in some cases.

COVID-19 can cause mediastinal lymphadenopathy, but it is not considered a typical finding on chest CT scans of patients infected by COVID-19.

COVID-19 has symptoms similar to the flu or common cold. Fever, headaches, and body aches are typically the first sign of COVID-19. These pains can come on slowly or appear suddenly.

COVID-19 mainly spreads via airborne particles and respiratory droplets formed when an infected person breathes, talks, coughs, or sneezes.

Headache is a potential symptom of COVID-19 and can also occur after getting vaccinated. COVID-19 headaches typically last for a few days, although the duration depends on your age, immune system, and overall health condition. In mild cases of COVID-19, headaches will usually resolve within a few days. However, in more severe cases, mild or moderate headaches may come and go for up to 90 days.

Fatigue usually lasts for 2-3 weeks after COVID-19 infection, although some people may experience fatigue for 12 weeks or more after the infection is gone.

COVID-19 can cause stomach ache along with other gastrointestinal issues, often the result of liver damage or medications given for treatment.

Drug or medication allergies are caused when the immune system mistakenly creates an immune response to a medication. Symptoms of a drug allergic reaction include hives, rash, itchy skin or eyes, dizziness, nausea, diarrhea, fainting, and anxiety. The most common drugs that people are allergic to include penicillins and penicillin type drugs, sulfa drugs, insulin, and iodine. Treatment may involve antihistamines or corticosteroids. An EpiPen may be used for life-threatening anaphylactic symptoms.

Though there is some overlap in allergy and COVID-19 signs and symptoms there are also significant differences. Symptoms that they have in common include headache, fatigue, tiredness, shortness of breath, wheezing, and sore throat. Fever does not occur with allergies but is one of the defining symptoms of COVID-19 infections.

COVID-19 has become a common illness that affects many people. Learn the signs of COVID-19, what causes it, how doctors diagnose it, and what you can do to treat it.

COVID-19 headache may feel like a pulsing, pressing, or stabbing pain.

Since there is no cure for peanut allergies, prevention and keeping an epinephrine injector (EpiPen) on hand is key to helping your child’s allergy.

Oral allergy syndrome, also called pollen food allergy syndrome or PFAS, is a type of food allergy caused by certain allergens found in both pollen and raw vegetables and fruits and some nuts. Foods that cause oral allergy syndrome include those in the birch, grass and ragweed families.

The common symptoms of ragweed allergy are sneezing, runny nose, itchy, watery red eyes, headache, nasal congestion, eye swelling, rashes and coughing.

Food intolerance is a condition in which an individual has difficulty in digesting certain foods. Consumption of these foods manifests as physical symptoms such as bloating, loose motion, gases, and bellyache. Food intolerance is quite common. Most people are aware of the foods that disagree with them.

Allergic conjunctivitis may occur along with sneezing, runny nose, or sinus headache. Many people also find that they are tired and feel agitated.

COVID-19 is a novel coronavirus that spreads from person to person via infected respiratory droplets. The main symptoms of COVID-19 infection include cough, fever, and shortness of breath. Occasionally, people infected with COVID-19 may experience diarrhea, a sore throat, a runny or stuffy nose, or aches and pains. Avoiding contact with infected people, social distancing, not touching your face, frequent hand washing, cleaning, and disinfecting of frequently touched surfaces can help to reduce your risk of contracting the 2019 novel coronavirus.

Here’s everything you need to know about the Delta variant, why it’s so contagious, and whether COVID-19 vaccines can protect against infection.

If you develop symptoms of a food allergy, your doctor will have you undergo a skin test or blood test to determine which foods you are allergic to.