Typically, when venom is injected, the victim will experience an immediate redness which develops around the bite, then begins to disappear within a few hours. Very often, for the first 24 hours, the bite appears to be no worse than that of a mosquito; then it begins to blister in the center. Within 24 to 36 hours the blister breaks open leaving an open, oozing ulceration.
This ulceration 'scabs' over within three weeks from the initial bite, leaving a permanent scar. If the bite is delivered in fatty tissue, the lesion may be very deep and extensive and not heal for two or three years. Systematic reactions to Hobo Spider poisoning include severe headaches, nausea, vomiting, soreness, and flu-like symptoms.
better hope you are not a fathead