How do you cure hot flashes naturally?

None: Although many herbs have been touted to help hot flashes there are no good scientific studies looking at them. Talk to a gynecologist about the advantages and risks of estrogen/progesterone replacement for you.

Botanicals: I respectfully disagree with my colleague -- there are studies supporting use of certain herbs in menopausal hot flashes. A couple of these are black cohosh (cimicifuga racemosa): http://www.Ncbi.Nlm.Nih.Gov/pubmed/22157510 and also sage (salvia officinalis): http://www.Ncbi.Nlm.Nih.Gov/pubmed/21630133 you can work with an integrative medicine physician for personalized recommendations.