Dry cough can be treated with antiviral, antibiotic, cough and phlegm, antispasmodic and asthma drugs as follows: 1. If the dry cough is caused by a virus, the bronchial mucosa can be seen to be congested and edematous, and oral antiviral drugs can be taken, such as Lianhua Qingdian, oseltamivir and other drugs. 2. If the cough is due to infectious factors, oral antibiotic drugs, such as amoxicillin, penicillin, levofloxacin, etc. can be taken. 3. If the cough is caused by asthma, i.e., cough variant asthma, oral glucocorticosteroids and beta agonists can be taken, and the patient can be given cough-relieving and phlegm-relieving drugs, such as Asmay and Folusil.