Allergic reaction

Allergic reaction,

Definition of Allergic reaction:

  1. Abnormal physiological response to an allergen or a physical stimuli. It may range from a mild attack of asthma or hay fever to sever dermatitis or gastroenteritis even extremely serious shock that may cause death from breathing difficulties, circulatory collapse, and/or heart failure. See also intolerance.

Meaning of Allergic reaction & Allergic reaction Definition