Manual reset of broken nose?

Hi, I broke my nose four weeks ago and it looks crooked. My doctor said that although my bones started to heal allready, he thinks it would be better to try to reset the bones in my nose manually then to have complex operation after. So Im going to have manual realignment next week which will be five weeks from accident. Im little bit scared of that surgery. Do you think it is safe to do manual reset after five weeks when the bones started to heal? Do you think its smart and healthy?