Hi thanks for contacting HCM... According to your complain you can have superficial bacterial infection .... For which antibiotic needed especially which is effective against gram positive organism..... Here amoxycillin or azithromycin drug can be used. You are given azithromycin drug which is effective ...complete its course.... Topical application of cream containing neomycin also effective ... Maintain hygiene if pubic area... Keep it clean.... Tight underwear avoided.... Drink lots of water... Rule out diabetics ..... If still no benefit consult physician for examination.. Take care