I'm in the middle of a very intense case of strept throat. Before this morning I'd barely eaten or drank anything for two days. Safe to say my mouth was constantly dry and I was very dehydrated. This morning when I woke up I noticed I was getting a cold sore beneath my lower lip. This happens to me often when I'm running a fever. I also noticed a few small circular bumps on the top and side of my tongue. They are not exactly painful unless they are prodded but I'm concerned about what they may be? A side effect of the dryness and dehydration? Cold sore on the tongue? Does anyone have any previous experience with something like this?