Coughing again after recovering from bronchitis may be caused by chronic irritation from smoke, dust, etc., or by recurrent bacterial infections. It should be treated by avoiding exposure to smoke and dust, improving immunity and using antibiotics. 1. Avoid contact with smoke and dust: Bronchitis is a respiratory disease, and when the environment contains more smoke and dust, it can irritate the airways and cause bronchitis to flare up again. At this time you need to need to stay away from this kind of environment. 2. Improve immunity: low immunity is an important reason for the recurrent effects of bronchitis. You should pay attention to sufficient rest, appropriate exercise, relaxation, improve immunity, promote the condition to recover as soon as possible. 3. Use antibiotics: Bronchitis can be treated with antibiotics such as cefuroxime if there is clear evidence of bacterial infection to remove infectious factors and promote improvement. Be careful not to drink alcohol when using them to prevent disulfiram-like reactions. When the patient’s bronchitis recovered again after coughing, you need to go to the hospital in time, under the guidance of the doctor’s lifestyle and drug interventions, avoid unauthorized use of drugs, to prevent the triggering of adverse consequences.