Granuloma annulare is a long-term (chronic) skin disease consisting of a rash with reddish bumps arranged in a circle or ring. The most commonly affected areas are the forearms, hands and feet. The lesions associated with granuloma annulare usually resolve without treatment. Strong steroids (applied as a cream or injection) are sometimes used to clear the rash more quickly. Most symptoms will disappear within 2 years (even without treatment), but recurrence is common. The underlying cause of granuloma annulare is unknown.