Children with asthma symptoms in rich countries are twice as likely to test positive for allergies as those in poorer nations, experts report.

A study of 107 Ohio State University varsity athletes shows that 39% have exercise-induced asthma, and most had no history of asthma.

Two young brothers with the same chronic illness. One mothers struggle...and what she knows now about keeping her children healthy.

New NIH asthma guidelines promise to make a childs asthma milder and to prevent severe asthma attacks before they happen.

Research has shown that tracking and rating your asthma symptoms are key to successfully managing asthma.

A lot of people think that treating asthma is simple: when you start wheezing, just take a puff from a rescue inhaler. But its not so straightforward for most people.

Teens who skimp on fruit, veggies, and omega-3 fatty acids may be more likely to have asthma symptoms, experts write in Chest.

The asthma drug Xolair has a new black box warning about severe, potentially life-threatening allergic reaction (anaphylaxis).

Infants who receive antibiotics in their first year of life are more likely to develop asthma by age 7, and multiple courses of the drugs boost the risk more, a Canadian study suggests.

Despite treatment and access to health care, more than half of patients cant keep their asthma under control, researchers say.

In global surveys of some 740,000 teens age 13-15 years, nearly half report exposure to secondhand cigarette smoke, says the CDC.

European researchers are working to build an electronic nose that sniffs asthma-related chemicals in patients breath.

Twice-daily whiffs of steroid drugs may become a thing of the past for people with mild but persistent asthma, two new studies suggest.

A stomach bacterium that causes ulcers and is linked to stomach cancer may make asthma less likely, a study shows.

Being overweight or obese may make asthma more likely, experts warn in the American Journal of Respiratory and Critical Care Medicine.

Ever since the 1930s, when a provocative study found a high-salt diet worsened asthma symptoms in children, researchers have speculated that our national appetite for salt is one reason asthma leaves more and more of us breathless.

A device that zaps the airway with radio waves cuts moderate-to-severe asthma symptoms, a clinical study shows.

Four out of five kids with asthma dont keep their symptoms under control, a new study shows.

When stress levels go up, asthma symptoms can go into overdrive. What¡¯s the link, and how can asthma and anxiety be managed?

WebMD consulted the experts to learn more about rescue inhalers, and the important role they play in asthma treatment.