An<unk>  is an exaggerated immune response or reaction to substances that are generally not harmful. Types of<unk>  include<unk> c conjunctivitis,<unk> c reactions,<unk>  testing,<unk> c rhinitis,<unk>  to mold, dander, dust, atopic dermatitis (eczema), contact dermatitis, drug<unk> es, food<unk> es and hay fever.
Allergy
Hypersensitivity
Radiosensitivity
Photosensitivity
Autoimmunity
Anaphylaxis pathophysiology
Cross-reactivity
Envenomation