I feel really embarred about going to the doctor? (private medical condition) help?

The doctors and nurses (I'm one) have seen so many es that it's like looking at your hand to them. You need to overcome your embarrment and talk to your dad about it. If you just find it impossible to talk to him about it, each day put a little Vaseline, or something gentle on it and work on pulling it back a little more each time. The end should look like an acorn when you are done.