Hi! Firstly, all the best to you in your health struggles. **HUGS**
I've done the treatment...once. Though, I was told that I had to do it several times in order for it to have the best results. Now, in the interest of disclosure, I am black w/ extremely coily hair. For me, it wasn't worth the investment; however, (assuming your coils aren't as tight as mine) your results may be different. In fact, the research I did said that it loosens your curl pattern. If your curl pattern isn't super tight, you may just get the results you're after.
I don't regret trying it, to be honest, since I'd have always wondered about it. Maybe it's worth a try?