Azithromycin for children is usually taken for 3 days and stopped for 4 days, and then cycled again, the average course of treatment is about 10-14 days, depending on your condition. Azithromycin is a macrolide, a broad-spectrum antibiotic, mainly used for the treatment of Mycoplasma pneumoniae infection, Chlamydia pneumoniae infection or Chlamydia trachomatis infection. Azithromycin has a long half-life and is usually discontinued after 3 days of administration, after which the pathogen remains in a suppressed state. If the symptoms disappear after 4 days of discontinuation, you can stop taking it; if the symptoms do not disappear, you need to take it for another 3 days continuously. If the symptoms do not disappear, consider that azithromycin is ineffective in treating the bacteria. It is recommended to improve the relevant examination and change other drugs for treatment under the guidance of the doctor, and not to increase the dosage on your own. Since azithromycin taken orally is stimulating to the stomach and may cause nausea, vomiting, abdominal pain and bloating, children are advised to take it after 2 hours after meals. If the symptoms are not relieved and continue to worsen, promptly go to the hospital for consultation. In addition, azithromycin is not suitable for children with underlying heart disease and hepatic impairment, and azithromycin should be used with caution in children under 2 years of age. Drink plenty of water and avoid spicy and irritating foods while taking the medicine.