Sharon, I'm not sure of the answer to this question, but I have occasional itching. Mine started in perimenopause and it was helped by first taking estrogen pills, then weaning off them and onto soy shakes.
When I became menopausal, the itching seemed to have stopped but it's returned in recent years. Only occasionally, but about every month I get intense random itching. Benadryl helps.
Because of the seemingly cyclical pattern to the itching, I asked my endo about it and he said I should get my liver tested. (I didn't. I just put up with the itching when it happens).
So I don't know the answer to this question but know that you're not alone!
Best of luck to you.