After the diagnosis of novel coronavirus infection, the main treatment is symptomatic, there are no special drugs, you can try drugs to clear heat and detoxify the toxin, such as Lianhua Qingfei capsule and so on. For example, if the patient has phlegm and cannot cough, expectorant drugs can be used, such as Mucosolvan, Cernod, etc. If the patient has a severe cough, cough suppressant drugs can be used, such as Lung Power Cough Compound, Su Huang Cough Capsules, etc. When the patient has fever, we can use physical cooling or antipyretic drugs according to the body temperature; if the patient has shortness of breath, oxygen is needed. If the patient has shortness of breath, oxygen is needed; if the patient has respiratory failure, invasive ventilator or non-invasive ventilator can be considered.