I have been doing oil pulling for about 13 months now. My hot flashes almost disappeared. I do it first thing in the morning while in the shower and at night while watching, for 10-15 minutes. I can tell that it is working because this summer we were traveling, had guests over etc. and I did not do it regularly and my hot flashes and night sweats came back. Now I'm back to my daily routine and they almost are gone.