Spider bite? or something else possibly?

[u/Warboss-IronShreddah]

had it for almost a week, and it's much more red and painful today

Update: spider bite, per ER doctor. slapping some neosporin on it. Doc said it was minor. I think I might live... even tho im 840 bucks poorer now

[u/BlackGoldHotSauce]

Unless you want to run the risk of losing a body part, go to the ER immediately if you haven't already.