I'm not sure when I got this but I felt it yesterday evening. Yesterday it was just a small red bump, like a mosquito bite. Now it's the small red bump with a bigger red circle around it. The bigger red circle feels kind of hard. :/ The pic isn't great because it's with my webcam. It's on my inner, upper arm. Boil? Cyst? MRSA? Spider bite? Anyone have any opinions?
It doesn't really look like mrsa to me, but it does look like a spider bite or a lyme rash. I would go to an urgent care or er tomorrow. I think at the very least you will probably need some antibiotics.