Treatment: Localized forms of granuloma annulare that are asymptomatic and not causing any distress to the patient can be left alone. Most cases resolve spontaneously over time with no residual scarring and no clinically noticeable abnormality. Topical corticosteroids may be used to try to decrease the inflammatory response. Intralesional corticosteroids can be used in some cases, but the risk of atrophy from the steroid injection must be considered. Generalized forms are not amenable to topical therapy. Phototherapy has been used successfully. Psoralen + ultraviolet A light (PUVA) therapy has had more success than ultraviolet B (UVB) light therapy, most likely because UVA light penetrates deeper into the dermis than UVB. Phototherapy with UVA1 appears promising.

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