Inflammation of tonsils during breastfeeding, if eligible for intravenous medication can be put on a drip, but need to suspend breastfeeding, so as not to cause adverse effects on the baby. Tonsillar inflammation is a common upper respiratory tract infectious disease, and IV refers to intravenous fluids. In general, tonsil inflammation during breastfeeding can be intravenous fluids, but only for the tonsil inflammation caused by bacterial infection, clinically commonly used antibiotic drugs such as penicillin, cefazolin and cefuroxime. The drugs must be applied under the guidance of a doctor. Usually the doctor will decide the route of administration according to the actual condition, and can also be taken orally. In addition, breastfeeding women need to temporarily stop breastfeeding when intravenous infusion of drugs, mainly to avoid the drug metabolized into the baby’s body through breast milk, to avoid adverse effects on the growth and development of the baby. If the tonsils are inflamed due to viruses, there is no need for medication and they can heal themselves. To summarize, patients with tonsillitis during breastfeeding need to go to the hospital in time, cooperate with the doctor for active treatment, and strengthen the management of daily life.