Definitely get to a doc ASAP. Cases of flesh eating bacteria are increasing, and it must be caught early or it can be devastating. There could also be MRSA in that infection, which also needs aggressive treatment.
It doesn't look like any picture of a Lyme rash I've seen, but then again, I'm not a doctor. If I were you, I'd go to a weekend clinic or urgent care today.
Please post back and let us know how you are doing.
No one here is medically trained that I know of, but it looks like an infection to my untrained eye, and that's why seeing a doc (urgent care or emergency room, if you don't have a doc you can call) is important.
Don't be afraid of going to the doc: antibiotics (of the right kind) could fix you up fine, but a doc has to decide that. Ok?
Whether it's Lyme or not, I'd be taking that leg to a doc asap. Something's going on, and it needs a doc.
Hi. Its hard to see but it doesn't look like a bulleseye rash. Not everyone gets a bulleseye though. Were you bit by a tick? If you were that is a different story.