2 year molars


My little guy is getting his 2 year molars. How long do they take to come in because it’s awful!!! He’s got an ear infection and a rash and he’s been so miserable! I’m having a hard time getting him to eat too. I can feel one that’s for sure coming in but every time I try to check he bites me. Any advise on how to ease pain? We’ve been doing Advil/Tylenol he will eat ice but won’t chew on a cold face cloth or anything without gagging.