Coin-sized spots on the body, no pain, no itch, if it is a hemangioma, you can take laser treatment; anaphylactic purpura, can be combined with the improvement of vascular permeability of the drug treatment; pityriasis rosea, can be used externally mometasone furoate and other glucocorticoid ointment treatment. 1. hemangioma: skin hemangioma can also cause the body to grow a coin-sized spots, painless and itchy symptoms, you can go to the hospital to take laser and other physical therapy measures. 2. allergic purpura: belongs to the vascular inflammatory reaction will cause subcutaneous capillary rupture, resulting in petechiae, ecchymosis, you can take vitamin C, rutin tablets, to improve vascular permeability; serious cases, can be combined with prednisone and other glucocorticosteroid drug therapy. 3. pityriasis rosea: pityriasis rosea may also lead to a coin-sized spot on the body, painless and itchy, you can use topical glucocorticoid ointment such as dexamethasone ointment and other medications. The body has a coin-sized spots, painless and itchy, there may be other reasons, need to go to the hospital to check the cause of the disease, and then symptomatic treatment, the above drugs need to comply with the doctor’s instructions.