Many patients are yearly treated for the wrong affection because of the misidentification and misdiagnoses of spider bites. Since necrosis can appear in the worst of cases, doctors can sometimes take it for other skin problems caused by staphylococci or fungi. Hence, the ability to correctly identify spider bites is vital for the right treatment of necrosis. Spiders Maybe they give the creeps to some of us, while others treasure them as pets: spiders are spread all over the world both in open nature and in our homes. There are thousands of species, some more venomous than others, to the point that they can kill a man in a matter of minutes. Despite their incredible diversity, all spiders create silk and design complex webs in which they catch their prey, nevertheless, silk is also great for climbing and laying eggs. This precaution measure is only valid in case the spider bite is located at the level of the arms or legs. One other thing you can do is to put some ice or cold water on the bite in order to reduce the discomfort and alleviate the pain. You should be concerned when the symptoms do no improve within 24 hours and there is numbness or increase in pain. Statistics show that 80% of the brown recluse spider bites are misdiagnosed. A test has been created to identify the wound and the venom type, but the practice is not part of the medical routine yet. Lots of doctors recommend a minor surgical intervention in the tissue area affected by the venom, yet the excision could impair the recovery as such and may increase the risk of scarring. The administration of specific medication can only be done by authorized medical personal and when the circumstances indicate a toxic venom exposure. Contact a health care provider immediately if you've been bitten by a spider and you experience fever, nausea, swelling of the tissues and severe pain. All spiders need to inject venom in order to survive, it is in the nature of their species and one of the life mechanisms they have been endowed with; what really differs from one species to another and gives rise to the classification into poisonous and non-poisonous is the amount of venom and its toxicity.