Pityriasis rosea is a common human skin disease which presents as numerous patches of pink or red
. The rash
may be accompanied by low-grade headache, fever, nausea and fatigue and itching. Topical and oral steroids are needed. Water, sweat, and soap may cause irritation and should be avoided in the disease. Topical zinc oxide and calamine lotion are useful for pruritus.
Initially, a primary plaque, called a herald patch, is seen.