Lupron and hot weather

I am a male that took a four month shot of Lupron with hormone shots to kill the tostestorone and shrink the prostate. This would enable me to leave town for three months and return in May for a radical prostectamy. Since then with the guidance of my primary physician, we returned and had the surgery after one and one half months. (best decision we ever made). Now the hot flashes are unbelievable and sleep is intermittent in between flashes. I have no other symptoms that are negative. Surgery was a success but hot flashes are terrible. Hopefully at some time in the future the effects of the shot and the hormones will wear off and I can get back to a normal sleepful night