Medicines for cough include cough suppressants, phlegm suppressants, cough suppressants, asthma suppressants, and some proprietary Chinese medicines with cough suppressant effects. 1. Cough suppressants: cough suppressants are mainly used for strong and frequent cough, affecting the patient’s rest and sleep, especially dry cough, which can be divided into central cough suppressants such as codeine, dextromethorphan, pentoxyverine, etc., mainly through the inhibition of medulla oblongata center and cough; peripheral cough suppressants such as nacogdocin, phenylpropylphenidate phosphate, etc., mainly through the inhibition of the cough reflex arc receptor to achieve the effect of cough suppressants. 2. Phlegmatic cough suppressants: mainly applied to cough with phlegm, such as bromhexine, acetylcysteine, aminobromine, etc., mainly by increasing the secretion of respiratory mucous membrane glands to reduce the consistency of sputum to promote the phlegm discharge, or through the enhancement of bronchial cilia swing to help phlegm coughing out. 3. Cough suppressants and asthma medicines: including salbutamol, procarbazole, tiotropium bromide, aminophylline, etc., mainly through the action of β-receptor, M-receptor or inhibition of phosphodiesterase in the airways, to achieve the effect of bronchial dilatation and thus alleviate the symptoms of cough. 4. Proprietary Chinese medicines: such as clearing heat and promoting the lungs, resolving phlegm and relieving cough of Chuanbei loquat syrup, nourishing yin and moistening the lungs, resolving phlegm and relieving cough of Lily of the valley solid gold tablets, dredging the wind and promoting the lungs, relieving cough and relieving pharyngeal cough of Suhuang capsule, etc., need to be selected according to the specific conditions of different patients. All of the above drugs should be used under the guidance of a professional doctor. It is recommended that cough sufferers should consult a doctor in time for professional treatment.