u/Annual_Law3926

So I can't upload a picture so I will describe it. Today in the morning I feel something in my mouth and I check it and theres this redness but no white stuff or anything It didn't even itch it just kinda buzzed when i licked it but i've stopped licking it. it's maybe 7 hours since the first discovery and It hasn't changed, I have shared a drink with someone 2 days ago so it could be that, should I be worried?