I have a 92 y/o mother that is constantly complaining of an overwhelming sense of hot flashes, rash and itch all over her body, currently on estrace vaginal application 3 times a week, cetirizine 10 po q-day and diphenhydramine 12.5mg prn q-day, has been evaluated by several m.d.'s but she still voices the same symptoms, what can I do?