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These spiders have venom that can cause a necrotic wound in humans who are bitten. iStock As a result, brown recluse bites are relatively ... the site may decay and slough away in a process ...

If you’re bitten by a horsefly, disinfect the wound and apply antiseptic ... s mandible is what makes these bites so painful. The mandible is essentially the insect’s jaw.

If you can’t get to the hospital right away, lay or sit down with the bite below the level of your heart. Then wash the wound with warm, soapy water and cover it with clean, dry material.