Oral Antihistamines

Nosebleeds are common in dry climates during winter months, and in hot dry climates with low humidity. People taking blood clotting medications, aspirin, or anti-inflammatory medications may be more prone to nosebleeds. Other factors that contribute to nosebleed are trauma (including nose picking, especially in children), rhinitis (both allergic and nonallergic), and high blood pressure. First-aid treatments for a nosebleed generally do not need medical care. Frequent or chronic nosebleeds may require medical treatment such as over-the-counter (OTC) medication, and prevention of nose picking.

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.

Most of the rashes are harmless and may not indicate anything serious. However, if there are these accompanying symptoms along with the skin rash, it may signify something serious. A rash can become serious if immediate medical assistance is not provided when a patient has the below symptoms including rash covers most of the body, continuous itching, fever, and difficulty breathing

Mucus is a standard substance produced by lining tissues in the body. Excess mucus or yellow, green, brown, or bloody mucus may indicate a problem. Mucus production may increase when allergies, a cold, flu, cough, or sore throat occur. Antihistamines and cold and flu medications may help alleviate excess mucus. A neti pot may be used to decrease nasal congestion and clear mucus.

Tonsil stones are small clusters of calcifications that form when food, dead cells, mucus, and bacteria get stuck in the nooks and crannies of the tonsils. Tonsil stones are hard, appear as white or yellowish formations on the tonsils, and usually smell bad due to bacteria. If symptoms occur, they may include persistent bad breath, sore throat, difficulty swallowing, ear pain, and cough.

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.

Sinus congestion can be relieved with both over-the-counter medications and home remedies. Learn about the best medicines for sinus congestion.

Sore throat (throat pain) usually is described as pain or discomfort in the throat area. A sore throat may be caused by bacterial infections, viral infections, toxins, irritants, trauma, or injury to the throat area. Common symptoms of a sore throat include a fever, cough, runny nose, hoarseness, earaches, sneezing, and body aches. Home remedies for a sore throat include warm soothing liquids and throat lozenges. OTC remedies for a sore throat include OTC pain relievers such as ibuprofen or acetaminophen. Antibiotics may be necessary for some cases of sore throat.

The word "rash" means an outbreak of red bumps on the body. The way people use this term, "a rash" can refer to many different skin conditions. The most common of these are scaly patches of skin and red, itchy bumps or patches all over the place.

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.

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.

Hives, also called urticaria, is a raised, itchy area of skin. Most often the cause of hives is unknown. Sometimes it is a sign of an allergic reaction to food or medications, but the cause of the allergy (the allergen) is unknown. Dermatographism and swelling (angioedema) may accompany hives. Treatment to get rid of hives and alleviate symptoms typically includes antihistamines.

The Eustachian tube is a membrane-lined tube that connects the middle ear space to the back of the nose. Symptoms of Eustachian tube dysfunction or blockage include popping and/or clicking in the ear, and ear fullness and/or pain. Causes of Eustachian tube dysfunction or blockage include allergies, sinus infections, ear infections, and the common cold. Treatment includes home remedies to relieve pain and several maneuvers (swallowing, chewing gum, yawning, etc.), which can be done to improve Eustachian tube function. In severe cases, surgery may be necessary.

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.

Several vital tasks carried out during sleep help maintain good health and enable people to function at their best. Sleep needs vary from individual to individual and change throughout your life. The National Institutes of Health recommends about 7-9 hours of sleep each night for older, school-aged children, teens, and most average adults; 10-12 for preschool-aged children; and 16-18 hours for newborns. There are two stages of sleep: 1) REM sleep (rapid-eye movement), and 2) NREM sleep (non-rapid-eye movement).

Panic attacks are sudden feelings of terror that strike without warning. These episodes can occur at any time, even during sleep. A person experiencing a panic attack may believe that he or she is having a heart attack or that death is imminent. The fear and terror that a person experiences during a panic attack are not in proportion to the true situation and may be unrelated to what is happening around them. Most people with panic attacks experience several of the following symptoms: racing heartbeat, faintness, dizziness, numbness or tingling in the hands and fingers, chills, chest pains, difficulty breathing, and a feeling of loss or control. There are several treatments for panic attacks.

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

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.

Lice and fleas are small wingless insects. Lice are parasites that can crawl and infest the human skin and scalp. Although they can bite people, fleas are parasites that mainly feed on non-human hosts and can jump from one host to another. Lice infestations and fleabites are treatable and typically do not cause long-term problems with proper treatments for home, people, and pets.

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.

Direct and indirect contact can spread some types of rashes from person to person. Rash treatment depends upon a rash's underlying cause. A rash that sheds large amounts of skin warrants urgent medical attention. Rashes can be either contagious or noncontagious. Noncontagious rashes include seborrheic dermatitis, atopic dermatitis, contact dermatitis, stasis dermatitis, psoriasis, nummular eczema, drug eruptions, hives, heat rash (miliaria), and diaper rash. Rashes usually considered contagious include molluscum contagiosum (viral), impetigo (bacterial), herpes (herpes simplex, types 1 and 2 viruses), rash caused by Neisseria meningitides (N. meningitides) (bacterial), rash and blisters that accompany shingles (herpes zoster virus), ringworm (fungal) infections (tinea), scabies (itch mite), chickenpox (viral), measles and rubella (viral), erythema infectiosum (viral), pityriasis rosea (viral), cellulitis and erysipelas (bacterial), lymphangitis (bacterial, and folliculitis (bacterial).

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.

When you have a cold, certain chemicals (histamines) are secreted by your body; these may lead to sneezing, a runny nose, and watery eyes.

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.

Insomnia is the perception or complaint of inadequate or poor-quality sleep because of difficulty falling asleep; waking up frequently during the night with difficulty returning to sleep; waking up too early in the morning; or unrefreshing sleep. Secondary insomnia is the most common type of insomnia. Treatment for insomnia includes lifestyle changes, cognitive behavioral therapy, and medication.

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

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.

Motion sickness is a feeling of unwellness caused by the inner ear and balance systems. Motion sickness can include sea sickness, car sickness, and train or plane sickness. Symptoms include, headache, nausea, vomiting, fatigue, dizziness, cold sweats, and pale skin. Treatment for motion sickness includes home remedies such as ginger, avoiding large or fatty meals prior to traveling, and OTC and prescription medications.

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

Vulvodynia or vaginal pain, genital pain is a condition in which women have chronic vulvar pain with no known cause. There are two types of vulvodynia, generalized vulvodynia, and vulvar vestibulitis. Researchers are trying to find the causes of vulvodynia, for example, nerve irritation, genetic factors, hypersensitivity to yeast infections, muscle spasms, and hormonal changes. The most common symptoms of vaginal pain (vulvodynia) are burning, rawness, itching, stinging, aching, soreness, and throbbing. There are a variety of treatments that can ease the symptoms of vulvodynia (vaginal pain).

According to studies, the twelve most common food allergens include milk, peanuts, eggs, shellfish, soy, tree nuts, wheat, fish, corn, sesame seeds, mustard, and celery. Check out the center below for more medical references on food allergens, including multimedia (slideshows, images, and quizzes), related disease conditions, treatment and diagnosis, medications, and prevention or wellness.

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.

Insomnia is difficulty in falling or staying asleep, the absence of restful sleep, or poor quality of sleep. Insomnia is a symptom and not a disease. The most common causes of insomnia are medications, psychological conditions, environmental changes, and stressful events. Treatments may include non-drug treatments, over-the-counter medicines, and/or prescription medications.

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.

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.

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.

Learn how to tell the difference between a rash and hives and how to treat both.

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.

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.

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

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.

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

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.

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.

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.