The child’s change from clear nose to yellow nose indicates that the condition has changed, the condition is aggravated than before, the appearance of superficial evil has not been relieved internal containment of heat, forming the symptoms of mixed cold and heat. You can take paediatric aminophenol xanthamine granules orally, which can treat and relieve various symptoms caused by common cold and influenza, such as fever, headache, nasal congestion, runny nose, sneezing, sore throat and muscle aches. Oral Chinese medicines can also be taken, such as Pu Di Lan Anti-inflammatory Oral Liquid, Blue Scutellaria Oral Liquid, Shuang Huang Lian Oral Liquid, Qing Kai Ling Granules, Ban Lan Gen Granules, Antelope Granules and other heat-clearing and detoxifying drugs. In traditional Chinese medicine, we usually give Ma Heng Shi Gan Tang with addition and subtraction, which has the effect of relieving symptoms and clearing the interior, resolving phlegm and calming asthma. If there is high fever and depression, it is recommended to go to the pediatric department and generally give intravenous fluids for symptomatic treatment.