Whether to use Cefdinir or Cefixime for bacterial infections needs to be analyzed with respect to the specific type of bacteria involved in the infection before a conclusion can be drawn. 1. Cefixime: It has a strong effect on Salmonella and Gonococcus, which are the most common gram-negative bacilli, and is used to treat gonorrhea, vaginitis, and gonococcal urethritis. However, cefixime is not as effective against staphylococci. Common adverse reactions include asthma, dizziness, diarrhea, tinnitus and sweating, etc. Cefixime is contraindicated in people who are allergic to cephalosporins. 2. Cefdinir: It has certain antibacterial activity against gram-positive and gram-negative cocci, and has good therapeutic effect on upper respiratory tract infections, especially on respiratory infections induced by Staphylococcus aureus and respiratory infections induced by Streptococcus pneumoniae. Common adverse reactions include dizziness, diarrhea, tinnitus, sweating and headache, etc. It is contraindicated for those who are allergic to penicillin and cephalosporin. In addition, there are certain risks associated with the use of the above drugs, which should be taken under the supervision of a specialist.