The child has a cold and fever and sleeps all the time, which is an abnormal phenomenon and is a symptom of lethargy. Blood count, blood sedimentation, C-reactive protein and cardiac enzyme spectrum can be checked, and it is necessary to exclude whether it is caused by viral myocarditis. If not, pediatric cold and flu granules can be taken orally, which can treat and relieve various symptoms caused by cold and flu, such as fever, headache, nasal congestion, runny nose, sneezing and so on. Chinese medicines can also be taken orally, such as Pu Di Lan Anti-inflammatory Oral, Blue Scutellaria Oral Liquid, Qing Kai Ling Granules, Ban Lan Gen Granules, Antelope Horn Granules and other medicines to clear heat and remove toxins. If the child’s temperature exceeds 38.5 ℃, you can take oral ibuprofen suspension, or acetaminophen suspension and other antipyretic and analgesic drugs, which can play a rapid role in reducing fever. If the fever is caused by myocarditis, you can use drugs that nourish the heart muscle and treat the symptoms.