I have a small, pink skin tag under my tongue, and it has a tiny white tip. It has been sore for the past week. I noticed it about a year ago, and my dentist said it was a skin tag. This past week, when it started hurting, I noticed it has grown a little bit since a year ago. I am going to my dentist next week to have it checked. Do skin tags under the tongue grow, and is the small white tip normal?