The are many products that are used topically, and should be effective in stopping hair loss at least for a while. In any case, is very probable they will keep hair follicles from miniturization, then later she can use a better treatment , once we have a better and radical one. Technically, it's possible to grow a healthy and strong hair from any hair follicle that is not completely dead, we just dont know how to do it yet. Minoxodil, Tricomin, Nizoral Shampoo are all effective treatments, rule out propecia since it 's not for women. There is new drug in phase of approvement wich is suppoussedly coming out beggining of next year called dutasteride wich is believed to be a very effective dht supressor, as some say,dutasteride will take dht virtually out of the picture, but since it works very similar to propecia I believe it will not be aproved for women.