The change from clear nasal discharge to yellow nasal discharge when you have a cold indicates that the condition has changed, with symptoms of unresolved superficial evil, internal heat and mixed cold and heat. The condition is aggravated than before, you can take anti-cold drugs such as Aminophenol Flavonamate Tablets and Cold & Flu Granules orally, which can relieve and treat various symptoms caused by cold and flu, and are suitable for common cold and influenza. It can be combined with roxithromycin, blue scutellaria oral solution and other antipyretic and anti-inflammatory drugs. In traditional Chinese medicine, it is usually given with the addition and subtraction of Ma Heng Shi Gan Tang, which has the effect of relieving the symptoms and clearing the lining of the body, resolving phlegm and calming asthma. It can be combined with TCM acupuncture point application, acupuncture, and blood pricking therapy. If the cold is aggravated with fever and transient loss of consciousness, it is recommended to consult the respiratory medicine department, which usually gives intravenous fluids for symptomatic treatment, and hospitalization is recommended for severe cases.