The causes of coughing are as follows: 1. The most common cause is allergic pharyngitis or cough variant asthma. 2. Acute exacerbation, acute exacerbation of chronic obstructive pulmonary disease, bronchiectasis with infection, or acute exacerbation of interstitial lung disease, etc., can occur with an intolerable cough. Treatment should be based on different etiologies, as follows: 1. In case of cough variant asthma, oral spray of hormones, such as budesonide, is preferred. 2. Anti-allergic drugs, such as ketotifen fumarate tablets, are preferred for allergic pharyngitis. 3. In case of respiratory infectious diseases, different anti-microbial drugs should be selected for treatment by distinguishing between bacteria, viruses, mycoplasma, chlamydia, etc. 4. If it is caused by viral infection, antiviral treatment or Chinese herbal medicine identification treatment can be given.5. If it is caused by bacterial infection, antibiotic anti-infection treatment can be given.6. If it is caused by mycoplasma, chlamydia and other atypical pathogens infection to come, macrolide azithromycin can be given, and quinolone antibiotics, such as moxifloxacin, can also be given to adults over 18 years old for anti-infection treatment.