I have PCOS as well, and I still hold out hope that balancing my hormones will indeed eventually take care of my hirsutism naturally. I believe 100% in the body's natural ability to heal itself IF given the proper tools (eating proper food and abstaining from chemical exposure).
Here's a web page you might be interested in. About half way down the page you'll see a section titled "Treatment of Non Classical CAH with Cortisol Restores Fertility", in this section the author claims it takes up to 30 months (2 and a half years!!) for proper hormone balance to correct hirsutism. Though it takes some time, this Dr says it DOES correct itself!
That page is about an adrenal issue as an underlying factor of PCOS, where she supplements a steroid in order to correct the problem, HOWEVER, my sister gave me a book titled "Adrenal Fatigue" wherein it talks about how all these different factors contribute to normal adrenal function, and when one little thing is out of whack, the whole system can go haywire.
The biggest thing is stress. Now I'm not talking about only emotional stress, I'm talking additional forms of stress also such as things like chemical exposure, physical or emotional trauma, FOOD ALLERGIES... just to name a few. Several years ago I went on a no-processed food diet for a month and a half. My periods came back (I was completely absent of periods for years but refused to go on the pill), I dropped 25 pounds in that time period, and I stopped having diarrhea every day. It was wonderful. Then I stopped and went back to eating the way I had, which was a lot of breads and dairy, and again, my periods stopped, the weight came back on (slowly, it took about 5 months to gain the weight back that I had lost in 6 weeks).
After years of doing research on my own, I've come to the conclusion that Paleo is the best thing for your body. I've already discovered I have big problems that come from me eating wheat (I tried a gluten free diet for 2 weeks and I deflated 12 pounds in 7 days!!!).. I've heard that when our bodies are in shock or in trauma (for example, eating something that is destructive to your whole body) it retains water (not sure if that's true), and when I stopped putting poison in my body, it released all that water weight.. So I've been 100% strict Paleo for a week now and I'm going to see if this is what it is going to take to get my body back to normal. I'm also going "GREEN" to stop any exposure to chemicals that might be contributing to my PCOS.
Hope this information helped! Good luck and don't give up!!! :)