Asymmetric nostrils can make appearance unbalanced and also it can cause nasal congestion.
This problem can occur either naturally, accident or after nasal surgery.
And it has a weak or bent nasal septum and cartilage.
Rebuilding and reinforcement of nasal septum and cartilage.
If the nasal septum is not enough or too week to use, then can use a self-rib cartilage or donated rib cartilage.