I haven't tried it but I have a friend who is selling it and wants me to try it. I don't know. I get it, sometimes natural things work wonders but big pharma can't patent something natural or make huge profits from it so it might be that it works and isn't profitable or maybe it does nothing. My understanding though of essential oils and bacteria is that the essential oils must be in vapor form. Not nebulized mind you, that would be harmful. There's some diffuser called TheraPro that doesn't utilize water so it doesn't have the risk of growing the bacteria like other diffusers. If I end up trying it I'm going to bite the bullet and shell out the 145.00 for the TheraPro, though my concern is the scent of diffused cinnamon and cloves might sound great but get nauseating eventually and then my entire bedroom will smell like a giant cookie and I'll have to launder everything if I get sick of the smell. If I do it I'll let you know how it goes, as for the rubbing on the feet thing, I don't see the harm there but I'd put a small amount in at first to be sure the oil doesn't irritate the skin. Let us know if that does anything- I might be able to save myself the 145 for the diffuser.