Nasal bone treatment. Nose back?

I met an accident 3 months before.Got a small hit on the top of my nose i.e, on the nasal bone.I didn't get to know about it for a month.I had nose bleeding for almost a day.After that when i saw that my nose was a bit crooked and a small bump was created on the nasal bone slightly towards the left of the nose ,I consulted to a nearby hospital .They suggested me for operation or rhinoplasty.I feared a lot at that time.Because of some causes i didn't had time to undergo the operation.Now the nose is stiff and doesn't pain .Looks like the cracked bones have now joined.But many a times one of my nostrils are blocked .I want my old straight nose back without any bump.Please do suggest me the best either to go for operation or not.And is it feasible to get back my straight nose back ?