This needs surgical repair for the best outcome but fillers can be used to improve the look. Best, Dr. Emer.
Hi. The reason your nose is crooked is due to the septum and the external structure. Classically you need a septorhinoplasty to improve those. Often times perfect symmetry is simply impossible but major improvements can be made. Sometimes non-surgical rhinoplasty can be used to inject the dented area to improve shadows and create the illusion of symmetry. It can be done. But only if the nose is narrow. Your nose is wider and adding filler to it can make it look straighter but wider and that will not be attractive so I would recommend against it in your case.
The reason why a nose deviates to one side is because the main supporting wall of the nose, the septum, deviates. Wherever the septum goes so does the nose - is an old saying that every nose surgeon has learned early in their career. Since such warping cannot be fixed Non surgically there is no way to straighten the nose without surgery.
Dr. Peter A. Aldea