Don't do it!!!!!!!!!! Some people are able to get this done with no ill effects and other end up with problems. I have a friend that is natural and she get her hair blown straight about 3 times a year and is able to gain her culrs back without a problem. Me on the other hand I got my hair blown straight and it never....NEVER went back. But it only remained straight in certain areas. 85% of my hair reverted back and 15% remained straight like I had a perm. I had it blown straight 12/03 and until 3/05 it was still straight. I had to cut it off. You will see on the curve website where they talk about me. I am on the second page the second one down.
When I went to Curve they were telling me about there is a way to blow natural hair without the damage. I wish I had known about that before I let my girl Carmen blow it out. Even when my niece had her hair done there were parts that were straight and did not revert.
IMO I would not do it. Especially since you do not know how your hair is going to react until it is already done and by that time the damage is done.