It all depends on the body part where you've been bitten; when the spider bites occur on the arm or the leg, tie a bandage right above the bite so as to prevent the spreading of the venom. Nevertheless, too tight a bandage may affect the correct blood flow in the area. A cold cloth pressed on the wound will reduced the swelling and the redness associated with spider bites in general. The most common way to perform the identification at a very amateurish level is to actually compare a specimen with a picture or a drawing and see whether there is a match. The important thing about spider identification is to actually be able to tell the poisonous spiders from the non-poisonous ones. Webs are the distinct mark of spiders but even these have a particular imprint of their own: thus, some create sheet webs, others spiral webs, not to mention the true mazes that some dangerous species design as deadly traps for their prey. A clear example here is the distinct tangled web the black widow makes; yet, spiders also create webs for the protection of their nests. Brown recluse spiders are also very special by the way they have the eyes located on the body. Unlike other spider species that have four pairs of eyes, brown recluse spiders have only three: one medianly located and the other two pairs lateral. If you suspect to have been bitten by such a spider, it is good to keep a close watch on how the condition of the affected area evolves. Thus, you may find brown widow spider specimens in a variety of colors from light tan to dark brown; moreover, all sorts of markings decorate their bodies making them all the more unique. There are red, orange, yellow, black and white patterns that the brown widow spider may carry on the abdomen, all of these features misleading any untrained eye. Nevertheless, besides this self-treatment you should also seek professional medical health since brown recluse spider bites are not to be taken lightly. Other measures meant to improve the victim's condition include the elevation or the immobilization of the body part if the bite has been made on one of the limbs.