I am currently using Peter Lamas Chinese Herbs Revitalizing line and my hair has been growing about 3/4 of an inch each month. It is a bit expensive but it's worth your money. I am also taking Folic Acid and Biotin which helps with the shedding (I hardly shed in a day). My hair has become quite dense and grows steadily.
Also being on P, it is very effective in preventing DHT from getting to your hair compared to Estro and Spiro combined. So consider all your options before you resort to surgery.
Quote from this resource:
http://www.hemingways.org/GIDinfo/hrt_m2f.htmPROMETRUIM vs. PROVERA: A study was done on the effectiveness of Provera vs. Progesterone on 5-alpha-reductase inhibition (which prevents Testosterone to DHT conversion). The study checked [natural] progesterone, medroxyprogesterone acetate [i.e. Provera], levonorgestrel, norethindrone, 17-beta estradiol [natural estrogen], and ethinyl estradiol [i.e., synthetic estrogen].
The results on 5-ARD inhibition:

Conclusion: Natural progesterone (i.e. Prometrium) is the most effective at preventing T-DHT conversion while medroxyprogesterone (i.e., Provera) is completely ineffective. Even natural estrogen was more effective.
So, if the HRT regimen is ethinyl estradiol and Provera the patient should supplement with Finasteride (Propecia/Proscar) to inhibit T-DHT conversion. Obviously taking Provera isn't going to inhibit the formation of DHT at all, so there's no reason to take it.
I should note that the above effectiveness percentages refer to SERUM levels. 5-AR and DHT are also active at localized places within the skin, where effectiveness is roughly halved. This makes a strong argument in favor of using a topical form of progesterone if the purpose of taking Pg is to combat the effects of DHT on hair follicles. As progesterone tends to collect in fatty tissues any infused cream/lotion/gel/foam should be applied at points on the body with high levels of blood circulation and low levels of fat (a the wrists and hands for example).
Long-term use of progestins like Provera have been more closely associated with the development of breast cancer, while long-term use of progesterone appears to offer a protective effect against breast cancer, possibly due to an insulin-related effect that is present with natural progesterone, but is not present when using progestins or just estrogen.