There is no evidence to prove that blowing the hair dryer on the top of the head can cure colds. Colds can be gradually cured by drinking plenty of water and resting, and medication is symptomatic and usually does not require antiviral treatment, but antibiotics can be applied if there is a combination of bacterial infections or secondary infections. Colds are self-limiting and can be gradually recovered by drinking plenty of water, maintaining good indoor air circulation, resting and quitting smoking when symptoms are mild. Colds mainly cause sneezing, nasal congestion, runny nose and other nasal symptoms, pseudoephedrine can be applied to symptomatic treatment, fever can be oral acetaminophen. Patients presenting with fever, immunodeficiency, and onset of illness for more than 2 days can be treated with antiviral drugs such as oseltamivir. Drugs for cold and flu need to be used under the guidance of a doctor, in addition to general treatment by drinking more water, light diet, more rest, appropriate exercise and other general treatment will also help the disease recovery.