Rash after fever reduction in 5-year-old children may be toddler’s emergency rash, chickenpox, rubella, etc. The main treatment is to strengthen the care, medication to improve, etc., the specific cause of the disease to choose the appropriate treatment. 1.toddler emergency rash: toddler emergency rash is caused by human herpes virus type 6 infection, there will be a fever, and then there is a rash, this time to strengthen the care, usually the rash lasts for 2~3 days will disappear. 2. Chickenpox: Chickenpox is caused by varicella-zoster virus, this disease will appear after 1-2 days of fever, but the rash will be within a few hours into blisters. If the itching is severe, you can apply glycerine lotion to relieve the itching, and you should pay attention to isolation to avoid infecting others. If you don’t take better care of the rash, it will be infected by bacteria, so don’t scratch it. 3. Rubella: it is an acute infectious disease caused by rubella virus, there will be prodromal symptoms before the onset of the disease, mainly manifested as a low to moderate fever for 1~2 days, accompanied by symptoms such as cough, sore throat, runny nose, etc., and the rash appears after 1~2 days of fever. This kind of rash usually does not need special treatment, pay attention to isolation to avoid infecting others. 5-year-old children with fever after the rash, should be timely consultation, by the doctor to clarify the condition, the cause of the symptomatic treatment, the above drugs should be used in accordance with medical advice.