a case study of impetigo

this is a report of a case study on 234 patients with impetigo who referred to razi dermatology hospital from april to november, 1989. treatment was started immediately after obtaining direct smear and performing culture and antibiotic sensitivity test. the most common organism responsible for impetigo was the coagulase-positive staphylococcus (71%). in 13.7% of the cases, the coagulase-negative staphylococcus was grown on culture media, but none of the cultures showed streptococcus as the main organism. treatment was started with oral penicillin v, oral erythromycin, benzathine penicillin g injection, oral cephalexin, and topical fuccidin. clinical and bacteriological evaluation after 3-7 days showed that it is preferable to use oral cephalexin instead of other protocols such as oral erythromycin, which has previously been the drug of choice for impetigo. in addition, topical fuccidin with a 75% curative rate was the first drug for treatment, with the same effect as the oral cephalexin