I shaved the pad off of my thumb, almost to the bone. The bleeding eventually stopped by pressure. At first, I used Neosporin under a non stick pad and a finger guard. After a few weeks, I was able to use Neosporin under a non stick band-aid. It has been one year now and even I, cannot see that there has been damage to the thumb. I am very pleased with the quality and speed of healing I received by using Neosporin, compare to other dressings I have used in the past.