I : I can't diagnose your lesion. You indicated that you thought you saw a fang puncture mark. The brown recluse is actually quite small. It can be a quarter of an inch to a little over half an inch, so I am not sure that it would leave an obvious fang mark. I was bitten by a brown recluse about 3 decades ago. The bite was painless. A black eschar (scab) quickly formed and the skin around it was white and died quickly. My arm became markedly swollen, hot and red and i developed a high fever and muscular skeletal aches throughout my body. I lost a lot of tissue (skin and deeper tissue) from the site. It took over a week to get rid of my generalized symptoms and several months for my arm to heal in the area that i was bitten. I became quite ill from it. Luckily, most people do not have this severe a reaction. Brown recluse bites can cause minor reactions or they can in rare cases be deadly. Hemotoxic venom is injected when they bite. In one study, over a third of bites led to necrosis (destruction) of the skin surrounding it. A systemic illness occurred in about 14 % of cases. However, the majority of people have no significant reaction to their bite. I don't know if you have a boil or if it is a venoous bite or sting. Spider bites sometimes leave a black scab in the center (called an eschar) and there may lighter, or sloughing skin around that. If you develop fever, vomiting or a significant amount of skin is sloughing, the area of redness is continuing to grow larger and painful it would be appropriate to have it checked out by a medical provider. Take care. I hope it heals quickly.
Answered 9/12/2019
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Brown recluse?: Did you see the spider? If not it may just be any insect. All punctures to the skin can lead to infection and pain. Wash with soap and water cover the area with a dressing and watch for fever, swelling and increased redness. See a doctor if you worsen.
Answered 9/28/2016
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