The best way to manage hot flashes is through hormone replacement therapy. However, there continues to be much debate over whether estrogen should be prescribed when a woman has a strong family history of breast cancer, or has been treated for breast or endometrial cancer.
Over the counter treatments that some women have found to be helpful in managing the symptom of hot flashes are: Vitamin E (up to 1200 IU a day), Vitamin B complex, and ibuprophen. Black cohosh has also been used but has estrogenic properties that may not be recommended for women with a history of breast cancer.
There has been some research with the use of the medications venlafaxine (effexor) an anti-depressant, bellergal and clonidine, for treatment of hot flashes, these would need to be prescribed by your physician. It is important to talk to your physician before you take any medications, to be sure there is no contraindication to any of these treatments in your individual situation.