Although arachnophobia, the fear of spiders, is common, it is mostly unfounded. A spider usually doesn't bite unless it feels threatened. Most spider bites are harmless, and often you won't even know if you've been bitten by one. If you do experience a reaction, the site of the bite may have some localized swelling, redness and pain.
Reactions
Most of the 30,000 species of spiders can't bite humans because their mouths are simply too small. The widow spider is one exception. Widow spider bites may result in muscle spasms and rigidity. The recluse spider's bite may spread into ulcerating dermonecrosis. Spiders don't transmit diseases, but some spiders invoke venom that may produce skin lesions, neurotoxicity, and systemic illnesses.
Treatment
If you happen to be bitten by what appears to be a spider bite, wash the area with soap and water. Apply something cold, such as an ice pack or cold compress to the bite. If there is a large bump, take an antihistamine to reduce the swelling. Take an over-the-counter pain medication if pain is present. If the symptoms are severe, seek professional medical treatment.
Prevention
Most spider bites occur during daytime in the spring and summer. Bites can be prevented by wearing gloves and long-sleeved shirts. Tuck pants into socks when in wooded areas or gathering firewood. Apply insect repellent that contains DEET. Remove spider webs and insulate the house. If you catch a spider on your body, flick it away with a finger. If you should try to crush it, that will cause the spider to open his mouth and bite by reflex.
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