<P> In presumed cases of recluse bites, dapsone is often used for the treatment of necrosis, but controlled clinical trials have yet to demonstrate efficacy . However, dapsone may be effective in treating many "spider bites" because many such cases are actually misdiagnosed microbial infections . There have been conflicting reports about its efficacy in treating brown recluse bites, and some have suggested it should no longer be used routinely, if at all . </P> <P> Wound infection is rare . Antibiotics are not recommended unless there is a credible diagnosis of infection . </P> <P> Studies have shown that surgical intervention is ineffective and may worsen outcome . Excision may delay wound healing, cause abscesses, and lead to scarring . </P> <P> Purportedly application of nitroglycerin stopped necrosis . However, one scientific animal study found no benefit in preventing necrosis, with the study's results showing it increased inflammation and caused symptoms of systemic envenoming . The authors concluded the results of the study did not support the use of topical nitroglycerin in brown recluse envenoming . </P>

Where do you usually find brown recluse spiders