Although a number of medical professionals still recommend applying a tourniquet to rattlesnake bites (and then briefly releasing the tourniquet every 15 to 20 minutes), Tony Nester, the author of Desert Survival Tips, Tricks, & Skills (Flagstaff: Diamond Creek Press, 2003), writes that most of the doctors he spoke to advise against applying a tourniquet (it simply concentrates the venom in the tissues immediately adjacent to the bite). Your best treatment is to get to a hospital or clinic as quickly as possible: do not delay.