Children with leg pain after fever can take Pediatric Cold and Flu Granules orally, which can treat and relieve various symptoms caused by common cold and influenza, such as fever, headache, nasal congestion, runny nose, sneezing, muscle aches and pains, sore throat and other symptoms. Oral Chinese medicines can also be taken, such as Pu Di Lan Anti-inflammatory Oral Liquid, Blue Scutellaria Oral Liquid, Shuanghuanglian Oral Liquid, Lianhua Qingdian Granules, Banlangen Granules, Antelope Horn Granules and other heat-clearing and detoxifying medicines. You can drink more water, pay attention to rest, supplement vitamin C, prevent cross-infection, and be alert to dehydration caused by high fever. If the child’s temperature exceeds 38.5 ℃, you can take oral ibuprofen suspension, or acetaminophen suspension and other antipyretic and analgesic drugs, can play a rapid role in reducing fever. You can also use Chinese herbal medicines to treat the fever caused by wind-cold flu. If the fever is caused by wind-cold flu, you can use the addition and subtraction of Jingpang septic toxin powder, which is pungent, warm and symptomatic. If the fever is caused by wind-heat colds, you can use Yin Qiao San to add and subtract, with the efficacy of pungent and cool to relieve the epidermis.