Janet,
I got your PM, I'm so pleased that all is going so well for you!!!! In regard to ice and the differant types, the ones that I find to work the best and are flexible and big enough are the ones you make yourself. One cup of rubbing alcohol, 3 cups of water and a large zip lock freezer bag. I have four of them which I rotate, and always have two ready to use when the other two melt. The thing I like about them is that they conform to your hip, and that they are big enough to cover a large area.... I use one under my backside, and the other to wrap around my hip and upper thigh.
Anyway, I'm glad to hear your still doing so well. Keep us updated on your progress.