Okay, detective mode. How do you know it’s not something else? Well, a False Widow bite usually doesn’t cause a spreading, deep-red bullseye like a tick-borne disease would. That’s a whole different kind of party crasher.
Also, FALSE WIDOW BITES DON’T CAUSE NECROSIS (flesh-eating stuff) in healthy humans. Let me shout that again: NO FLESH EATING. The internet loves that myth, but it’s almost always a case of a bacterial infection getting a free ride on a tiny scratch. A spider bite is just the opening act; the bacteria is the rude rockstar.
You’ll also notice the bite site stays relatively localized. It won’t grow into a giant, oozing crater unless you scratch it raw and invite bacteria to a pool party. So, keep your nails away from it.