>>81710171 (OP)Yeah, it's an ingrown toenail. Either a nurse can cut it out with scissors or you'll get local anasthesia and a doctor will go to town chopping your nail up and smashing it with a literal chisel depending on how bad the case is.
I had this when I was a kid, they fucked the first surgery up so bad I had to go back three more times for reconstructive plastic surgery and my nailbeds are now forever fucked.