This means the bite causes an ulcer or open sore, and tissue begins to die. Some people will develop a blister, and then a “necrotic lesion” due to the spider’s bite. This causes the wound to expand, usually over a period of several days to weeks. If the spider injected minimal venom and you’re healthy, the discomfort usually goes away in a few days.īut for others, the venom spreads. In some people, the brown recluse’s venom is localized to only the area where the spider bit you. The pain usually reaches its height at about the 24-hour mark after you are bitten. Early on, its center will be a pale color, with an inflamed reddish outer ring. The bite may appear as two tiny puncture holes. Over the course of the next several hours, the irritation may cause a burning sensation. You may start to notice a red, tender, and inflamed area about 2 to 8 hours after the spider bit you. Unless you saw it happen, at first, you might not even be aware that a spider has bitten you. Initial biteīrown recluses have very small fangs, and their bite is usually painless. Prompt treatment can slow these effects and allow your skin to begin healing faster. In a 2020 study of 97 patients bitten by the spider, 40 percent experienced hemolysis, the damaging or breaking down of red blood cells. As a result, the skin tissue can die, a phenomenon called skin necrosis. Symptoms and stages of a brown recluse spider biteĪ brown recluse’s venom can destroy blood vessels, tissue, and nerves.
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