as a bc survivor, no herbals, meds or otcs here after a discussion with the drs. Too many increases in hormone levels...and higher hormones are not good! all Soy is a no no for me too.
So...best to dress in cotton, use layers instead of heavier clothing, drinks lots of water...CUT OUT SALT...a HUGE culprit....you can also put the COLD stem of the glass/cup your drinking from on your wrists (if you happen to be at a restaurant) etc cooling the wrists, nape of neck etc helps to alleviate the symptoms. As far as night sweats, keep the room Cooler, again, cotton and lots of fluids...its definitely annoying but it too shall pass...remember you're in good company...so many people suffer from this..Hang in there!!!