Living with Kyphosis?
If its an inborn symptom, I guess only operation could help but its very dangerous. If it was caused by your work or there are other causes, you can slowly recover from it. Try to do some stretch to get the back muscle working for you.
Homemade Bodywash?
You can put the leftover pieces in a pot with a little water then put the pot on the fire. When the soap gets soft, pinch them together, let it try.