Rash after fever reduction is commonly seen in children with acute rash, which can be improved by general treatment and medication as prescribed by the doctor. 1. General treatment: Parents can encourage the child to drink more water to replenish the body water, to prevent dehydration. At the same time, you can use warm water to bathe the child, which can relieve the discomfort caused by fever. 2. Medication: Childhood acute rash is a self-limiting disease and is usually treated symptomatically. When the child feels uncomfortable because of fever, parents can give the child ibuprofen, acetaminophen and other antipyretic drugs to relieve the discomfort of the child. After a rash develops, topical glycerin lotion can be applied to promote the fading of the skin lesions. Parents are advised to take their children to regular hospitals and cooperate with doctors for standardized treatment.