I'm no med expert by any means, but I have no idea how motor oil would help. There's many different "treatments". If possible, of course, go see a doctor! Everyone reccomends a cleaning, an ice pack, and elevation. <br><br>This guy reccomends a nitro patch. (some of the followig pics are not for the weak at heart.)<br><br>http://www.geocities.com/Yosemite/Forest/2021/recluse/intro.html<br><br>This site refutes it:<br><br>http://www.emedicine.com/emerg/topic547.htm<br><br>And this site even has a forum, looks pretty interesting:<br><br>http://www.brownreclusespider.net/<br><br>I've got a nice scar from moderate necrosis from a cuddly little brown recluse. I don't think a sawyer extractor would've done too much for me. It took a few days for me to really notice any significatn pain or swelling. Not to mention the severe reactions that some people have to the bites as well. JMHO