Bacterial infections with penicillin okay should be based on drug sensitivity to decide, hemolytic streptococcus, streptococcus pneumoniae, etc. is more sensitive to penicillin, you can use penicillin treatment, but penicillinase-producing aureobacteria are not sensitive, it is not recommended to use. Bacterial invasion of the host body caused by pathological changes, after consultation, the doctor combined with the different types of disease to collect the appropriate specimens for bacterial diagnosis and culture and drug sensitivity test, combined with the results of bacterial culture and drug sensitivity test selection of antimicrobial drugs. Not all bacterial infections can be treated with penicillin. Penicillin is suitable for all kinds of infections caused by gram-positive cocci such as group A combination B hemolytic streptococcus, Streptococcus pneumoniae, etc. It also has a certain effect on Streptococcus oxysporus and spirochete infections. However, it is not sensitive to penicillinase-producing bacteria and is generally not recommended. Bacterial infections have a variety of manifestations, and the suitability of using penicillin should be decided by a professional doctor after a comprehensive judgment, and avoid purchasing and using it on your own.