Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Allergies Health Center

Font Size

Allergies May Actually Help Fend Off the Common Cold

WebMD Health News

June 6, 2000 -- Experts have long speculated that children, and possibly adults, with allergies and asthma get more colds than other people. But new research suggests that instead, allergies might actually help to lessen colds' severity and duration.

Surprised? So were the researchers, who say the findings of their small study were the opposite of what they expected to find. The study's results were published in the Journal of Allergy and Clinical Immunology.

The findings are important because understanding why some cold sufferers have many symptoms while others have just one or two may someday help scientists develop vaccines to protect against the common cold.

"These findings suggest that [allergies] may not predispose people to more severe colds," study author Pedro C. Avila, MD, tells WebMD. "What we found was just the opposite of what we had thought." Avila is an assistant clinical professor in the department of medicine at the University of California-San Francisco's Cardiovascular Research Institute.

For the study, the researchers injected 20 allergy patients with rhinovirus infection, also known as the common cold. Then they divided the patients into two groups, and injected one group with substances known to cause allergic reactions, such as pollen. This group actually stayed well longer, and, when they did develop cold symptoms, their colds didn't last as long as those of the other group.

The researchers believe that the results show that multiple allergens within the nose do not worsen cold symptoms. Instead, they say, allergies may significantly shorten the duration of cold symptoms, and those symptoms might be milder.

"Allergens, per se, may not be what makes the cold worse -- maybe some people just get more severe colds," James F. Gern, MD, associate professor of pediatrics at the University of Wisconsin Hospital in Madison, tells WebMD.

Gern was not involved in this study, but has performed similar studies with different results. No one has undertaken a study like this one before, he says, and the findings may shed light on several aspects of the common cold.

Future studies will be important to confirm these findings, and researchers are now focusing on why people get colds, why some people get worse symptoms, and why some people never get sick, Gern says. "We see huge differences in how severe colds are. This study represents a good step forward in understanding what happens during a cold," he adds.

Avila plans future research to learn more about cold symptoms and their severity.

Today on WebMD

man blowing nose
Make these tweaks to your diet, home, and lifestyle.
Allergy capsule
Breathe easier with these products.
cat on couch
Live in harmony with your cat or dog.
Woman sneezing with tissue in meadow
Which ones affect you?

blowing nose
woman with sore throat
lone star tick
Woman blowing nose

Send yourself a link to download the app.

Loading ...

Please wait...

This feature is temporarily unavailable. Please try again later.


Now check your email account on your mobile phone to download your new app.

cat lying on shelf
Allergy prick test
Man sneezing into tissue
Woman holding feather duster up to face, twitching