Baby diarrhea caused buttocks rotten should be referred to diaper rash or diaper dermatitis, baby diarrhea caused buttocks rotten can be used for general treatment, drug treatment. 1. general treatment: if the baby diarrhea butt red flaky erythema, you can use the temperature of the water to wash the baby’s affected skin, remove the contact material, the local use of baby-specific moisturizing milk, change diapers diligently to ensure that the baby’s buttocks dry and clean, and wash the buttocks in a timely manner after the bowel movement, to keep clean and dry. 2. medication: if the baby diarrhea butt blisters, vesicles or even superficial ulcers, can be applied to the local skin zinc oxide ointment for treatment, you can also use such as erythromycin ointment anti-infection. The baby diarrhea butt rot recommended timely medical treatment, so as not to delay the condition. The above drugs need to be used in accordance with medical advice.