How is granuloma annulare treated?

Since GA may spontaneously resolve, expectant observation is certainly a good treatment option. Numerous therapies have been anecdotally reported to be successful, including radiotherapy, cryotherapy, laser, psoralen plus ultraviolet light (type A, [PUVA]), ultraviolet A-1 (UVA-1), niacinamide, isotretinoin, salicylates, potassium iodide, dapsone, antimalarials, cyclosporin, and chlorambucil. None has met with overwhelming success. The treatment of choice at this time is strong topical corticosteroids with or without occlusion or intralesional corticosteroids. Corticosteroid therapy usually makes the lesions resolve, but potent preparations are necessary to get a good response and may produce secondary thinning of the skin.