Allergies Archive

People who are allergic to penicillin are often given less effective medications that can make them more susceptible to infections, but many people who believe they are allergic to penicillin are not. New techniques are allowing medical providers to assess whether or not a person has a true penicillin allergy.

Many people have experienced mild allergic reactions to a food, medication, or other allergen, but a severe reaction can be harmful or even fatal. Anaphylaxis must be treated with epinephrine as quickly as possible, followed by a visit to a hospital emergency room for observation.

Many children look forward to warm, mild spring weather, but kids with seasonal allergies (also known as hay fever) might not. Hay fever can interfere with a child's ability to play outdoors, and it can just plain make them feel miserable. These tips can help your child cope with allergy season — and they work just as well for adults, too.

Babies who show certain digestive symptoms may be incorrectly diagnosed with cow’s milk allergy and put on special diets, although this allergy is uncommon.

News briefs

On Feb. 14, 2020, the FDA announced that two popular symptom-relief drugs can now be sold without a doctor's prescription. One is diclofenac sodium topical gel, 1% (Voltaren Arthritis Pain), which is used to temporarily relieve arthritis. The other is olopatadine (Pataday), which comes in eye drop form (in two strengths, for once-a-day or twice-a-day dosing) to relive itchy or red eyes from pollen, ragweed, grass, or animal hair or dander. Even though these medications are now available over the counter, they still have risks and benefits, so talk to your doctor before using any new treatment.

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Allergic rhinitis, commonly called hay fever, can be a minor seasonal nuisance or a troubling year-round problem. Most people can find relief by taking an antihistamine and by avoiding the allergens that trigger the irritation.

In children with food allergies, peanut allergy is the one most likely to cause a severe reaction. A newly approved medication made from peanut flour treats peanut allergy by giving a gradually increasing dosage over several months.

Many people have experienced unpleasant symptoms related to food, but such a reaction does not necessarily mean that you have a food allergy. The symptoms could indicate a food intolerance, food sensitivity, or possibly celiac disease.

Eosinophilic esophagitis is an allergic inflammation of the esophagus that most typically develops as an allergic response to certain foods. The exact cause is unclear, but if left untreated it can lead to permanent scarring or narrowing of the esophagus.

Ask the doctors

Q. I have terrible allergies every winter. What can I do to make them more tolerable this year?

A. Unlike fall or spring allergies, which are often responses to outdoor allergens, such as pollen or ragweed, most winter allergies are triggered by substances inside your home. Common indoor allergens include dust mites, mold, and pet dander, and they can prompt a host of symptoms, from a runny nose and sneezing to a sore throat and itchy eyes. While these indoor allergens are present year-round, allergies can flare up in the winter because you're cooped up in the house with the windows closed. Your home's furnace may also be circulating these substances through the air once the heat kicks on.