Azithromycin is mainly used for the treatment of tonsillitis, acute otitis media, bronchitis, pneumonia, soft-tissue skin infections, and urethritis caused by sensitive bacteria. Azithromycin belongs to a kind of macrolide antibiotics, which has good bacteriostatic effect on Gram-positive cocci such as staphylococcus and streptococcus as well as Gram-negative bacilli such as influenza bacillus and Escherichia coli, Mycoplasma pneumoniae and Chlamydia trachomatis, and it is commonly used in respiratory tract infections, skin soft tissue infections and sexually transmitted diseases caused by these sensitive bacteria. Common adverse reactions of azithromycin include diarrhea, nausea, abdominal pain, vomiting, rash, itching, etc. It is prohibited for those who are allergic to macrolide antibiotics. Azithromycin belongs to the commonly used antibiotics, you need to follow the doctor’s instructions for medication, not to self-medication, to ensure that the therapeutic effect, to reduce the production of drug-resistant bacteria.