In summer, the child’s buttocks rash is considered to be the emergence of prickly heat, eczema, ringworm and other diseases, the need for timely treatment with medication. 1. prickly heat: if the environment temperature is too high, sweat more not timely cleaning may lead to prickly heat, generally can use prickly heat powder coating, relieve the symptoms, usually also need to appropriate ventilation, avoid activities in the hot environment. 2. Eczema: contact with allergic substances may lead to eczema, so there will be a red rash symptoms, you can use glycerine lotion, loratadine and other medications to relieve the symptoms. 3. Ringworm: If a child’s buttocks are infected by fungus, ringworm may be induced, and can be treated with ketoconazole cream, bifonazole cream and other drugs under the guidance of a doctor. Usually need to do a good job of children’s local care work, to avoid infection, the above symptoms may also be caused by other diseases, it is recommended to timely in the hospital dermatology consultation, the above drugs need to be used under the guidance of a doctor.