Hirsutism can be difficult to treat and cure permanently, because it can be difficult to identify the underlying cause, although a specialist may advise surgery for polycystic ovaries or prescribe you medication for underlying causes.
For most women, dealing with idiopathic hirsutism is a matter of dealing with the symptoms: the excess of hair growing where you don't want it to.
You can help yourself by losing weight, believe it or not, if you are obese, as larger woman may have increased androgen levels. So make sure you eat healthily and exercise regularly. That is good for all of us, anyway.
The remaining treatments are those that deal with hair removal. Shaving may not be the best idea. It may be easy but with hirsutism you may have to shave so often that you irritate your skin.
You also run the risk of having the unwanted hair looking thicker and darker as it grows back as the ends will be blunt. Stubble re-growth can also be really uncomfortable.
Plucking, waxing and threading all have a longer term effect, as the whole hair is taken out of the follicle, but that can be really painful. It can also, on rare occasions, cause scarring and the hair follicle can become infected.