I had one on my big toe once as a child. We went to the doctor and he prescribed a liquid medicine. It was not the wart-off type acid stuff. It didn't hurt and didn't make any noticable difference in the wart's appearance. Then one day after a couple of weeks (I'm guessing here on the time. It was a long time ago.), my mom squeezed it on either side, like some might do with a pimple, and it popped right out. No bleeding, little pain, more like tickling. It left a cool little pit in my toe for a day or two, then no sign of the wart at all. Bottom line - your son doesn't have to be afraid to go to the doctor, and the doctor doesn't have to burn or freeze or cut the wart off. Good luck!