About 4-5 days ago I noticed a large red bug bite on the top of my DS foot. This morning it looks like a bullseye. We live near a deer park and have spent time there recently. I’m thinking tick bite (but never saw the tick, and my DS said he didn’t see it either). It’s not itchy and he has no fever. We’re sitting waiting to be seen at a walk-in centre. Am I overreacting? Everything I read online says it’s Lyme when a bullseye rash appears and 21 days of doxycycline is needed (which I’m fine with, if nexessary). Anyone have any experience of this?