Cephalosporin antibiotics are mainly used clinically for infections caused by bacteria in various systems, such as for respiratory tract infections, urinary tract infections, and skin and soft tissue infections. During breastfeeding, if the mother takes cephalosporin antibiotics due to illness, it is recommended to avoid breastfeeding after taking cephalosporin because some cephalosporin antibiotics may affect the baby through breast milk excretion. Since allergic reactions can occur during the use of cephalosporin antibiotics, if the baby consumes breast milk containing cephalosporin, there is a risk of allergic reactions to the drug and other side effects may occur. Therefore, avoid breastfeeding after taking cephalosporin and wait until the drug is completely eliminated from the body before resuming breastfeeding. It is also recommended that if you do need to take medication during breastfeeding, it is best to take it under the guidance of a professional doctor to prevent harm to your own health and that of your baby.