Zithromax is generically known as Azithromycin. Whether or not your child can take a cephalosporin after stopping three days of azithromycin depends on the specific situation. If the mycoplasma infection is determined, taking three days of azithromycin is effective, it is generally not recommended to change to cephalosporin. If just general bacterial infection, azithromycin effect is not obvious, can be in the physician’s guidance to take cephalosporin. Xisumi is a trade name for azithromycin, a macrolide drug, commonly used in the treatment of mycoplasma and chlamydia infections. Children stop three days azithromycin, the drug is metabolized in the body, excreted through the bile, its body blood concentration has been reduced to very low, if azithromycin taking effective, or clear for mycoplasma infection, it is not recommended to eat cephalosporin, can continue to use the second course of azithromycin can be, do not need to change the drug. However, if the effect of 3 days of azithromycin is not obvious, you can change to cephalosporin. All of the above drugs should be used under the guidance of a physician, and should not be used or changed on their own.