Baby rash and emergency rash, allergic dermatitis and other factors related to the need to deal with according to the cause of the disease, the main care includes dietary modification, medication and so on. 1. baby rash: generally no itch, no need for topical medication, will subside on its own, during the period does not require special care, it is recommended to eat a light diet, drink more water, if there is a fever can be given to physical cooling. 2. Allergic dermatitis: local itching, can be under the guidance of a doctor to apply glycerine lotion to stop itching, give the baby a bath, avoid using soap or alkaline toiletries. At the same time, do not let the baby heat, sun exposure, cold wind blowing, during the rash to keep the local dry, to avoid skin irritation, it is recommended to give the baby to wear cotton, more loose clothing, and pay attention to indoor ventilation. If there are identified allergens need to stay away from allergens, to avoid re-exposure to cause adverse consequences. There may be other reasons for the baby’s rash, it is recommended to go to the hospital in time to avoid delay.