Azithromycin in infusion for children can be used 8-10mg per kg body weight per day. the course of treatment is judged according to the baby’s condition and can usually be used for 5 days. If the symptoms are not very serious, it can be changed to oral treatment for 3 consecutive days, but the total course of treatment is usually 5 days. For special or serious infections, the course of treatment should be longer. However, after 5 days of use, there is usually a 3-4 day interval before further use is considered. When continued, if the condition is in good remission, you can also switch to oral medication. Azithromycin, as a type of antibiotic, is usually used clinically for mycoplasma infections or for children with penicillin or cephalosporin allergies can also choose azithromycin for treatment. The main side effect of these drugs is liver damage, when using especially strict control of the dose, the total amount of drugs should not exceed a reasonable dose of normal weight for a normal age.