I am the same way as you, even a professional wax does not prevent the red bumps.
The key is to constantly keep up the maintainence. Bikini Zone does work, but you have to use it a lot. I had to start using it about 7 or 8 times a day, and it took about 4 weeks before I noticed a difference with using it, of course it is expensive to keep buying it, you can also use the auzoline oil, it works just as well. Or alternate between the two.