Are there any exercises i can do at home to remedy a dorsal hump that is still visible 3 weeks after septorhinoplasty? can it still go away in a yr.

Patience and Time: If the Hump is related to a structural defect (cartilage/bone) then no exercises will remedy this problem. However, if related to post surgical swelling, then allowing yourself time to heal is the best option. It takes several months to a year for the final results of your septorhinoplasty to be fully appreciated. There are non surgical options such as silicone which can soften subtle deformities.