Make your doctor give you those insoles, then, or ask him/her to approve/recommend a stiff-soled shoe. Actually, you might even be able to walk in cycling shoes that haven't had the cleats put it--come to think of it. Believe me, you can heal it without the boot. But one thing I didn't do during the healing period was push off the wall. For it to heal you really do have to not flex it. No pushing off with that foot...