I read your detailed description of the lesion & its clinical appearance & would like to excercise caution as regards jumping to conclusions.
From your description, it may simply be a case of recurrence of the warts
Dermatology is a 'visual ' field. For best results, you are well advised to take a good clear digital photo of the lesion & put it up on this web-site. Should you desire discretion, please use our speciall 'Ask-a Specialist' feature & get in touch with mois!
Having said that, remember 5% 5Fluorouracil
may be a good alternative to treatment for most of these conditions especially in the genital area but is best if freshly prepared at a local chemist.
Good Luck to you in your treatment & hope this advice helps! Cheers!
Dr Praveen Rodrigues MD
, Cosmetologist, Venereologist
Vikram Hospital, Bangalore, India