Paroxysmal cough can be caused by a number of factors, including coughing after a cold, pneumonia, and allergic cough. Paroxysmal cough should be treated according to the cause. 1. Cough after cold: paroxysmal cough caused by cold, can be used honey extracted Pei Pa Koa, dextromethorphan and so on. 2. Pneumonia: paroxysmal cough caused by pneumonia, can be used to cough, dextromethorphan hydrobromide and other drugs to suppress cough. For bacterial pneumonia, cefuroxime and cefixime can be used; mycoplasma pneumonia can be treated with moxifloxacin and roxithromycin. 3. Allergic cough: irritating dry cough, mostly paroxysmal, daytime or nighttime cough. It can be treated with inhaled glucocorticoids such as budesonide and/or oral antihistamines such as loratadine. Paroxysmal cough may also have other causes, it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, and then give targeted treatment or therapy. The above medications should be used under medical supervision.