Hiya there. I picked to answer your query as it read distress all over it. Empathy. Yes, aceto-whitening is an accepted test to detect warts as it reacts with the viral proteins giving this reaction & is a safe & fairly reliable indicator & usually used to detect cervical warts by the gynecologists et STD specialists . Having said that, yes these can persist for long periods & recur too; there can be false positives to the naked eye & it is best reviewed by a doctor specialised in the area & all these areas need be cauterised at one time using either a chemical cautery &/or electric cautery depending on the lesions & expertise of said specialist. I have had good results using a topical 5% 5 Fluorouracil cream too but this needs care & medical supervision & prescription. Feel free to contact me or any other specialist near you using this HCM portal on our premium packages to ensure privacy & post photographs of these lesions should you choose to. Good Luck & do practice safe sex. Cheers! Dr Praveen Rodrigues MD