When an allergen such as pollen enters the body of a person with a sensitized immune system, it triggers antibody production. Histamine and other chemicals are released by body tissues as part of the immune response. This causes itching , swelling of affected tissues, mucus production, muscle spasms , and other symptoms. Many disorders are associated with, triggered, or worsened by allergies. These include eczema , asthma , and many others.
Allergies are very common.
Find related articles on Allergic rhinitis . The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Inc. Any duplication or distribution of the information contained herein is strictly prohibited. All rights reserved.