What is an aspirin allergy?
A person with aspirin allergy will often develop allergic symptoms within 30 minutes of ingesting an aspirin-containing medication. Allergic reactions can range from mild to severe anaphylaxis. Allergic reactions to aspirin are more common in those with asthma or allergic rhinitis. Those with an aspirin allergy should also avoid a closely-related compound, nonsteroidal anti-inflammatory medications.

What are the symptoms of an aspirin allergy?
The symptoms of an aspirin allergy usually develop within a few hours of taking the medication. Symptoms range from severe breathing difficulty to a hive-like rash.

How does the doctor treat an aspirin allergy?
Treatment for an aspirin allergy may include epinephrine injections, antihistamines, corticosteroids, and other medications that diminish the allergic response. Treatment may also include oxygen and medications to reverse wheezing.