A type of acute or chronic skin reaction in which sensitivity is manifested by reactivity to materials or substances coming in contact with the skin. It may involve allergic or non-allergic mechanisms.

Synonyms: Hypersensitivity, Contact, Contact Hypersensitivity, Contact Dermatitis, Contact Sensitivity, Contact Hypersensitivities, Contact Dermatitides, Contact Eczema, Eczema, Contact, Sensitivity, Contact, Dermatitides, Contact, Hypersensitivities, Contact, Contact Sensitivities, Dermatitis Venenata, Dermatitis, Contact, Sensitivities, Contact