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Dr. Travis Stork from "The Doctors" says the condition is a year-round problem that affects a growing number of people.

Allergic asthma is caused by sensitivity to year-round allergens in the air, which triggers an allergic reaction and leads to asthma attacks and symptoms.

Stork says few people know that about 25 million Americans suffer from asthma, and approximately six in 10 with asthma have allergic asthma.

To learn more about Stork's campaign with the AAFA, called "The Asthma Express," visit www.asthmaexpress.com