Skin Tests.

Casoni: hydatid cyst

Dick: to check susceptibility to scarlet fever

Frei's : Lymphogranuloma Venereum.

Kveim : sarcoidosis

Lepromin : type of leprosy.

Montenegro reaction: cutaneous leishmaniasis.

Mantoux/ tine/heaf :latent TB

Schick: to check susceptibility to diphtheria.