Children with low-grade fever usually do not need to take medication, and physical cooling can be used. If you can’t get rid of the fever, you should consult a doctor in time to clarify the cause of the low fever and then give targeted treatment. Normal human body temperature is regulated by the hypothalamic thermoregulatory center, so that the process of heat production and heat dissipation is in dynamic balance. Fever refers to the body under the action of pyrogen or various causes of dysfunction of the thermoregulatory center, so that the body temperature exceeds the normal range. Take the axillary temperature as an example, children with low fever, body temperature between 37.3 ~ 38 ℃, generally do not need to use drugs to deal with. For children with low fever, more physical cooling, such as drinking warm water, head placed fever patch or warm water bath, etc., while paying attention to rest, eat a light diet, the body temperature can return to normal. If the temperature is measured again, if the low fever is not relieved, or continues to rise, it is necessary to consult a doctor in time to determine the cause of the fever and then give symptomatic treatment. If medication is needed, follow the doctor’s instructions.