Little baby butthole red and rash, consider the possibility of diaper dermatitis, you can use topical tannic acid ointment, zinc oxide ointment and other drugs treatment. 1. Zinc oxide ointment: is an emollient and protective agent class of drugs, for the treatment of acute or subacute dermatitis, eczema, prickly heat. Occasionally see local itching, burning and other adverse reactions. Allergic to the components of the drug is prohibited. 2. Tannic acid ointment: the drug is usually hospital preparations, need to be used under the guidance of a doctor. The drug has astringent, protective effect, commonly used in the treatment of diaper dermatitis, bed sores and other diseases. Occasionally, symptoms of local irritation, such as burning sensation, are seen after use. It is contraindicated for those who are allergic to the components of the drug. Children with diaper dermatitis, in addition to medication, should also pay attention to keep the local skin dry and clean, avoid long-term use of non-replacement of diapers or diapers, etc., to avoid the stimulation of urine and feces pollution. Little baby asshole red rash may also be other diseases, such as perianal eczema, etc., it is recommended that parents bring the child to the regular hospital dermatology or pediatrics, under the guidance of a professional doctor to use medication, to avoid self-medication to cause serious adverse consequences.