I've had "heat waves" a lot; some medially "inspired" and some natural.
Like Robin I just got on with it and thanked Who-ever/ What-ever that I was still alive to *have* them.
That said every now and again it would drive me nuts . But I go nuts about something every couple of months anyway.
Solutions - there are lots around but the problem is finding what works for you. I never tried anything too technical anyway (history of estrogen-related breast cancer)
Basically, I think the struggle to fix, avoid, treat and control is sometimes more than trouble than its worth; especially with something that is going to sort itself out eventually (unless you get run over by a bus first )