The baby legs like ringworm plaque belongs to the abnormal phenomenon, mostly considered to be a fungal infection, seborrheic dermatitis and other causes, can be treated by topical medication. 1. fungal infection: the main cause of ringworm is fungal infection, it is recommended that parents take their children to the hospital for examination, after diagnosis of ringworm spots can be applied with topical medication such as sertaconazole cream, etc., and at the same time to keep the skin clean, to avoid activities in poor sanitary conditions of the environment, and to disinfect the children’s change of clothes, to avoid secondary infections. 2. Seborrheic dermatitis: children may also be caused by seborrheic dermatitis, usually pay attention to the regularity of life, sleep enough, healthy diet, avoid excessive local friction. After diagnosis, you can apply topical medication such as sulfur ointment to the affected area. Parents can supplement some vitamin-rich vegetables and fruits to their children. If the plaques do not improve significantly after a period of time, the baby should be taken to the hospital for medical treatment.