I can't use a razor or an epilator--both cause ingrown hairs for me. And that causes cysts, followed by surgery. *sigh* Waxing works, but my hair grows back quickly and you can't wax until the hair is about 1/4" long. Well, you can, but it isn't very effective!
For the past 8 or 10 years (possibly a bit longer), I've been using Serious Skin Care Liquid Laser from HSN. It's a cream depilatory--no laser involved! *LOL* And you also can purchase a cream (called "Post Laser") that helps soothe the skin and slows regrowth of hair--to a certain extent. They recommend testing it by leaving it on two minutes, removing a small amount to see if it has worked, then continue testing it every minute to a maximum of 8 minutes. For the most part, five minutes works well for me. More than six minutes and my skin is very irritated.
As I said, my hair grows very quickly, so I have to use it weekly--occasionally more frequently in the summer. In the winter it's closer to 10 days most of the time. I've talked to a couple of other women who use it, and after using it several months, they only needed to use it about every three weeks. I wish! *LOL*