I've had ingrown hairs on my chin and I was able to remove them myself with a pin and a tweezer, obviously that's way easier.
I'm glad he saw a Dr. about it but he MUST wait till it's fully healed or he'll open the wound, get infected, etc. He'll also must wonder about either not shaving/waxing anymore and go natural or get laser.
At least he was honest, way too honest!