If your child has an allergic rash, avoid contact with allergenic substances and treat with oral or topical anti-allergy medications. If the rash is caused by pathogen infection, anti-infection treatment should be carried out, and pay attention to protect the local skin. 1. Allergic rash: allergic rash is often accompanied by intense itching, daily life should avoid contact with allergenic substances, but also to avoid scratching stimulation. If necessary, oral loratadine and other anti-allergic drugs can be prescribed, and at the same time can be applied locally glucocorticoid cream (such as dinexidine cream) and so on. Severe itching can be externally cleaned with glycerite lotion. 2. Rash caused by pathogen infection: most of the pathogens causing the rash are viruses, and there are no obvious symptoms except for localized skin lesions, and the treatment mainly involves the use of topical antiviral ointment, such as acyclovir ointment, and so on. Also pay attention to the protection of local skin lesions, to avoid the combination of bacterial infection. There may be other reasons for your child’s rash, so it is recommended that you go to the hospital in time for a complete examination to determine the cause of the rash and then give targeted treatment or therapy. The use of medication should follow the doctor’s instructions.