Cough with white sputum is usually due to inflammation of the airways, which can be caused by infection with a virus, due to a viral cold. It can also be due to inhalation of tobacco, smoke or foreign bodies, particulate matter, etc., which irritate the airway mucosa and secrete to produce white secretions, which can also appear as cough. The main treatment for cough with white phlegm is phlegm- and cough suppressants, such as Ambroxol hydrochloride and acetylcysteine capsules, and cough suppressants such as Chuanbei loquat or compound codeine phosphate oral solution. In addition, if you are a smoker, you should quit smoking. If there is dust in the working environment, pay attention to labor protection.