Red spots all over the body after high fever, if it is a child, clinically it is mainly considered that it may be due to virus-induced acute rash, the characteristics of acute rash is that the fever goes down and the rash comes out, which will gradually spread all over the body, and the general course of the disease will slowly subside after 3-4 days. In addition, we cannot rule out the possibility that chickenpox virus infection, measles virus, rubella virus, as well as typhoid fever, paratyphoid fever and other infectious diseases often cause red spots all over the body after the fever subsides. If there is no clinical discomfort, and the body temperature has been normalized, there is no need to do too much treatment, as long as you pay attention to drink more water, pay attention to rest, in addition to closely observe the changes in the condition, usually about 3-4 days can be fully recovered, if the situation is getting more and more serious, it is necessary to go to the hospital in time for further examination and treatment.