My Son who is 13 had gotten one on his hand and he tried everything, from cutting it out to duct tape and nothing worked until I went and got him store brand topical liguid wart remover and he would use it faithfully twice daily and I believe it was gone in 2 weeks. I believe the bottle said it could take 6 wks or longer but he had it gone in 2 wks. He had never had one before and it is gone now and no more. I would try the liquid remover being 3yrs old the badage is not going to work for a 3yr old. Good luck!