So I cut my penis shaving a few weeks ago and as a result a skin tag formed. I looked up ways to remove skin tags, found out applying apple cider vinegar helps. Two times a day, I've been putting it on and yes it has helped the skin tag. But what's even more interesting is the permanent bruise I caused myself from clamping beyond my limits started to fade, and now is virtually gone. I've never heard of this before, so if anyone with discoloration would like to try this, please do. I want to know if I found something cheap and useful, or if it just faded away on its own over the last week.