Hello! I have a sore throat. I thought it was from the ice cream. I ga…

Hello! I have a sore throat. I thought it was from the ice cream. I gargled. Now I discovered there's some kind of lump under my jaw, I think it's a lymph node. I decided to look at my throat, it's red and white like bumps. Has anyone ever experienced this? I'm going to see a doctor today. But the appointment is probably as usual for a week if not longer. If anyone has encountered something similar, could you tell me what to do, even just continue gargling with something.