The reason for the different appearance of your nostrils is that the caudal septum is crooked and the support of the nose wings is not equal on the right and left sides. It can be easily corrected with surgical treatment.
As far as can be seen from here, there is no need right now. Your doctors told you the truth. Sometimes, when the projection is reduced, the nose wings expand and it may be necessary to do so. We can decide this by examining the side photo.
