There are several diseases of the respiratory system that can cause coughing symptoms. For patients with a prolonged and violent cough, the following aspects need to be taken into account during the treatment process: 1. The cause of the cough is clearly identified and the cause is found and treated for the right reason: for example, cough caused by lung infection requires the use of antibiotics. If the cough is caused by variant asthma, long-term treatment with inhalers is required. 2. Some chronic coughs can be stopped by medication: for severe coughs caused by non-infectious factors, patients can take central cough suppressants, such as codeine oryzanol tablets and compound forskolin, but not central cough suppressants if the cough is caused by infectious factors. 3. Luo Han Guo in water; on top of these therapies, drink more water, because drinking water can promote airway moistening. If the patient uses medication, it must be done under the guidance of a medical professional.