Can manually pushing nasal bones over 1 year after revision rhinoplasty cause permanent changes?

My doctor after more than 1 year manually pushed the nasal bones inward to make the nose slimmer. Apart from the level of the pain which was terrible, after a couple of days, the bones returned back to the original position. The doctor recommended me to do it again but at this point i dont trust it will last. Do you know if such procedure can be permanent and ive been just unlucky? He did not put anything on the nose to fix the shape or recommended me nasal excercise.