Hello and welcome to HCM.
Thank you for your query.
From the presentation described, you are indeed undergoing
menopause.
Estrogen creams are advised for various reasons, they replace the deficiency of the hormone, help in producing lubrication that can help retain sexual intercourse, prevent infections; and various other beneficial reasons.
Progesterone would be required and advised in women intending on getting pregnant, which is not required in your case I am assuming.
Yes, the estrogen creams are bioidentical, and created in the laboratory after years of research. If life can be created in the laboratory and successfully, then why not a few hormones. Do not worry, please use the cream, and go through your menopause uneventfully. Wishing you a beautiful life ahead.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications at: http://doctor.healthcaremagic.com/doctors/dr-shoaib-khan/64581 . I would gladly help you.
Best wishes.