The child’s asshole always grows a rash need to pay attention to skin care, medication, may be related to anal eczema, contact dermatitis and other factors, specific analysis is as follows: Children who usually do not pay attention to the hygiene of the perianal area, resulting in local moisture, small rashes, accompanied by itching and other phenomena, may be eczema, need to use hydrocortisone ointment, mupirocin ointment, etc., under the guidance of the doctor, and at the same time need to pay attention to the local hygiene, keep dry. In addition, contact dermatitis will also be accompanied by a small rash, and will also be accompanied by itching, you can use glycerine lotion for external use, with boric acid liquid wet compresses, pay attention to do not let the child scratch the parts of the rash, to avoid cross-infection. All of the above drugs are used under the guidance of a doctor, and should not be used on their own.