56, just had hysterectomy and oorph for stage 1 uterine cancer found in d&c. Surgery pathology clean. Hot flashes are horrific. Is estrogen an option?

Yes, possible option. Hormone replacement is sometimes used by women who have had early endometrial cancer. Best to speak with your gynecologist and/or oncologist re: his or her opinion. Also consider non-hormonal options for treating hot flashes.