There are only a few species of spiders whose bites pose a threat to humans, the Black Widow and Brown Recluse spider found primarily in the southern part of the United States. Spiders are natural predators and will not bite unless threatened or provoked when unintentionally disturbed. Most of the time, suspected spider bites are often the result of bites from other insects, but nonetheless special precaution should be taken if you suspect you have been bitten.
When bitten by a spider, try to identify the type of spider and seek immediate medical attention if it is Black Widow or Brown Recluse. Special medicines and in the case of Black Widows, an anti-venom medicine, may be required for treatment. It is important to clean and cleanse the skin around the site of the bite and apply a cold cloth directly on the bite. If you have been bitten on an arm or leg, placing a bandage on the site of the bite and elevating your arm or leg can help prevent the spread of the venom. Victims of spider bites should be concerned if the local reaction worsens over a 24-hour period. Spider bites, much like other types of insect bites can cause an allergic reaction in sensitive individuals. Victims of spider bites should seek immediate medical attention calling 911 if they begin to become weak, break out in hives or have shortness of breath and wheezing.