Hi @Milly21,
Hot flushes are the absolute pitts.
You wont be recommended to take anything with phytoestrogens in it because they don't know if it will interfere with the drugs. So no promensil, no remifen, no menopause ease, no nothing with black cohosh or red clover etc etc etc etc , zip, zilch.
If it's any consolation, and it's not I know, it does back off a bit over time but it took 10-12 months before I got even close to a reasonable nights sleep.
I still get the flushes 17 months later but not as supersonic as they were thank goodness.
My husband is a terrible insomniac and uses restavit which works well for him and you can buy it over the counter (they will keep an eye on you though).