I'm not an expert, but from what I understand it is used to treat other things then just warts and has been used to treat areas of concern regarding skin cancer- as far as skin tags in the genital area- I believe they just remove them more then give you medication for them. I'd head to your local pharmacy and just ask them if they know of this medication being used for skin tags- your pharmacists are usually the biggest help when it comes to uses and interactions of prescriptions. It wouldn't hurt to just go get tested either, it's not abnormal to get a regular panel of STD tests run if you are sexually active as a precaution.