Dry cough is mainly treated by etiology, as follows: 1. If the dry cough is caused by tuberculosis, it should be actively treated with anti-tuberculosis therapy, using a combination of streptomycin, isoniazid, rifampin, and ethambutol. Pay attention to the side effects of the anti-tuberculosis drug treatment process, such as changes in hearing, vision and liver function.2. If the dry cough is caused by pharyngitis or pharyngitis, it can be treated with penicillin and dexamethasone injected into a nebulizer for nebulization.3. If the dry cough is caused by bronchopulmonary infection, it should be treated with antibiotics.4. If the dry cough is caused by bronchial asthma, it should be treated with bronchodilators and Glucocorticoids should be used for treatment. In conclusion, since there are more diseases causing dry cough and the causes are more complicated, it is recommended to go to the hospital for examination to confirm the disease and to treat it under the guidance of a doctor.