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Allergies

Find the latest stories, news, and expert advice about allergies, including medical research on symptoms, treatment, and prevention.

The Latest

Doctor explaining chronic hives to a stressed young man.
Living With

Even Your Doctor Might Not Understand Chronic Hives

Despite comprehensive testing, doctors are unable to determine the cause of chronic hives 80 to 90 percent of the time. The good news is chronic hives is less difficult to manage now compared to 20 years ago. The key is knowing your trigger points.

Couple ordering meal in restaurant.
Living With

Food Allergy Safety Tips for Dining Out

For people with food allergies, restaurant dining often means using a number of strategies to avoid a life-threatening allergic reaction called anaphylaxis.

Doctor explaining treatment options for chronic hives.
Diagnosis

Diagnosing and Treating CIU

Some chronic hives patients go through years of hopping from one doctor to another, searching for the cause of their recurring welts, itching, and/or swelling.

Woman scratching hives on her shoulder.
Treatment

Is Your Chronic Hives a Mystery?

While some people with chronic hives will never know why they're affected, seeing an allergist is the best way to find a treatment.

what to eat?
Nutrition

Chronic Hives and Diet: What the Research Says

Can certain foods trigger a chronic hive flare-up? Can a low-histamine diet relieve symptoms? Studies render different results. Here's a succinct summary of the research.

Girl with appendicitis.
Surgery

Allergies and Appendicitis: A Surprising Link

Kids with allergies have a lower risk for complicated appendicitis, which sometimes requires multiple surgeries and longer hospital stays, according to a study.

Alpha-gal, red meat allergy.
Insects

Meat Allergy Caused by Tick Bite Is the Most Common Cause of Anaphylaxis

An allergic reaction to alpha-gal, a complex sugar found in red meat, caused by a Lone Star tick bite is now the most common known cause of anaphylaxis.

Penicillin allergy.
Medication

Penicillin Allergy Testing May Reduce ‘Superbug’ Risk, Study Says

People who are allergic to penicillin are often prescribed much stronger antibiotics, increasing antibiotic resistance and their risk for serious drug-resistant infections, but fewer than 1 percent of people believed to be allergic to penicillin are tested.

Red meat.

Red Meat Allergy Linked to Heart Disease

Research suggests that such red meat allergies, sometimes caused by a tick bite, increase plaque buildup in arteries and can increase the risk for heart disease.

Bowl of peanuts.

A New, Safer Test for Peanut Allergies?

Researchers at King’s College London in England have developed a new blood test to diagnose peanut allergies that may be safer, more accurate, and less expensive than existing tests.