Sounds like a spider bite to me.
Yeah, it's most likely not poisonous. Even the harmless spider bites tend to look like that. My boyfriend has gotten a few and the worst thing that happened was one of them got infected and turned into cellulitis and he had to get antibiotics. Just see a doctor if you're worried about it, and keep it clean & covered until then.
A bad one..see a doc ASAP!!!
if it burns the brown recluse spider
if it does burn go and see a doctor now, but then if it was you wouldnt be online because it is too painful.
yes its that bad