If you have a severe cough, the first step is to find out the cause of the cough and choose the appropriate medication to treat it. If the severe cough is caused by an infection, the first step is to treat the infection. For bacterial infections, antibiotics, such as cefaclor, are often needed. If the infection is viral, antiviral medications such as ribavirin and Four Seasons Antiviral Combination are needed. If the infection is caused by mycoplasma, the more effective and faster, are azithromycin and roxithromycin. In addition, you need to take cough and phlegm relieving drugs to relieve the symptoms of cough, such as aminoglutethimide oral solution, lung power cough combination, compound fresh bamboo liquid, the effect is also good. If the cough is more severe due to cough variant asthma or allergic cough, you need to use bronchodilators and glucocorticoids to relieve the symptoms, and you can nebulize and inhale budesonide and terbutaline.