Hi, I am a 61 year old feamle with hyperplasia. My uterine linning measures 9 millimeters. I am told it should be 4 millimeters. I have been on bio-identical hormones for the past 6 years. The past 1 year, I have not been well monitored. I have stopped my prescription of bio-identicals and am using progesterone cream in an attempt to thin my uterine linning. As I understand it, I must use approximately 400 mg daily to accomplish this. My questions is: HOW LONG WILL THIS TAKE ? Please advise.