Something like a red dot inside my sons throat

S

Hi, this is gonna be hard to explain however I noticed my son has like what looks to be missing skin from his throat it’s like low by his tonsils really hard to see he’s not sick or anything he seems to be okay I took him to urgent care she said she thinks it’s a birthmark or something he was born with and idk it doesn’t make sense to me and I have a appointment with his pediatrician but that’s on the 8th

Has anyone ever dealt with this before?