Food allergy is an abnormal response triggered by your body's immune system. The reaction may be mild or severe (anaphylaxis). Learn more.| medlineplus.gov
A cockroach allergy is a common trigger of year-round allergy and asthma. If you are allergic to them, they can trigger asthma attacks.| Asthma & Allergy Foundation of America
Mold spores get into your nose and cause hay fever symptoms. They also can reach the lungs and trigger asthma.| Asthma & Allergy Foundation of America
Information on allergens, asthma, and pulmonary research performed at NIEHS | Additional resources for managing allergies| National Institute of Environmental Health Sciences
Histamine is the stuff that allergies are made of. Why do we have such an annoying chemical, and what can be done about it?| medlineplus.gov