There are many reasons why lungs tickle and want to cough, commonly due to respiratory infections, allergic asthma, and lung tumors. 1. Respiratory tract infection: at this time you need to go to the hospital, under the guidance of the doctor for routine blood tests, chest X-ray, pathogen examination, etc., to clarify whether it is a bacterial infection or a mycoplasma infection, and then according to the pathogens to choose the nebulized inhalation, intravenous infusion and other treatment methods. Bacterial infections mostly use cephalosporin, amoxicillin and other drugs, mycoplasma infections mostly use erythromycin, azithromycin and other macrolides. 2. Allergic asthma: you need to go to the hospital for allergen testing and avoid contact with allergens. Follow the doctor’s instructions to use albuterol, aminophylline and other drugs to relieve bronchial spasm for nebulized inhalation, can also choose brinaid, dexamethasone and other glucocorticoid drugs to control airway inflammation. 3. Lung tumor: If the symptoms of lung itching and coughing last for a long time and become more and more serious, it is necessary to pay attention to it and go to the hospital for cytology, chest X-ray and other examinations to make sure whether it is a lung tumor. If it is a lung tumor, you should actively cooperate with the doctor to carry out radiotherapy treatment and lung tumor resection if necessary. There are many other reasons why lungs tickle and want to cough, you should go to the hospital in time, clarify the cause of the disease, and carry out standardized treatment under the guidance of the doctor. The above drugs should be used under the guidance of a doctor.