Coughing all the time may be associated with a variety of diseases, among which the common causes include tuberculosis, bronchitis, bronchiectasis, lung cancer, etc. Depending on the disease, cough suppressants and treatments are needed. General treatment (light diet, stop smoking), cough suppressants (e.g., Ambroxol hydrochloride), antibiotics (e.g., cefdinir, azithromycin, etc.), and surgical treatments are used after the diagnosis is made. 1. Tuberculosis: Tuberculosis can cause a persistent cough and requires the use of a quadruple combination of anti-tuberculosis drugs, including rifampicin, isoniazid, ethambutol and pyrazinamide. If combined with bacterial infection, antibiotics, such as cefdinir, are needed. During the treatment, it is necessary to pay attention to a light diet and avoid drinking and smoking. 2. Bronchitis: Bronchitis can also cause coughing, runny nose, coughing up phlegm, etc. If it is a bacterial infection, you need to use antibiotics, such as cefdinir, amoxicillin, etc. If it is a viral infection, you can use ribavirin. If the cough and phlegm are more severe, you can use cough suppressants and phlegm removers, such as Ambroxol hydrochloride. 3. Bronchodilatation: Bronchodilatation combined with bacterial infection will cause cough, need to use antibiotics, such as azithromycin, cefuroxime, and with the cough and phlegm medication, such as acetylcysteine, ambroxol hydrochloride. 4. Lung cancer: coughing all the time is an early symptom of lung cancer. After diagnosed lung cancer, it is necessary to take surgical treatment, meanwhile, cooperate with radiotherapy and chemotherapy, if the cough is heavy and cannot be relieved, it can be combined with the use of cough suppressant drugs, such as dextromethorphan hydrochloride. Coughing can also be seen in other causes, such as gastroesophageal reflux, cardiac insufficiency, etc., which need to be clearly diagnosed and treated. It is suggested that patients should go to the hospital in time, and use medication or surgery reasonably under the guidance of the doctor, and should not use it indiscriminately in order to avoid the adverse consequences.