So after a trip to the doctor, she decided two small white spots on my penis just below the glands, were warts. She used liquid nitrogen to freeze off the two noticable warts.. But after a week or so I noticed another small wart. After research I decided to try apple cider vinegar to dry out the last wart. The process has worked out well, But in the last two nights of soaking the spot in ACV, Ive noticed the head of my penis has a small red soar from where the vinegar accidentally touched the head (instead of the skin on the shaft). Its not soar, but it is noticable. I've been tested in the last two months for STIs and the results were clean. I'm positive this redness is from the apple cider vinegar. Has anyone else experienced this? and how long will it take to heal? Cheers.