Penicillins are effective for treating bacterial infections in many clinical situations , but in certain cases , they cause allergic reactions varying from mild skin rashes to anaphylactic shock and death .
An alternative solution is that doctors could treat first with a short course of penicillins , which are effective against gram-positive infections , then follow up with drugs that target gram-negative bacteria if the initial treatment is ineffective .
Besides , the sensitive rate of mrsa to linezolid and vancomycin was 100 % , the drug resistant rate of mrsa to penicillins was 100 % . In addition , the drug resistant rates to ciprofloxacin , erythromycin , clindamycin , rifampin , sxt , tetracycline and gentamicin were higher .
