Nose is still swollen and numb / firm to the touch 10 months after septorhinoplasty - Should I be concerned?

Postop swelling, firmness and numbness after septorhinoplasty: the firmness ,especially of the tip area, is due to a combination of scar tissue and the columella strut graft. it is normal to have that at this time and some of it will persist indefinitely. The numbness is due to detaching the skin from the underlying Cartilage and bony structures with some damage to the nerve endings. These gradually regenerate and most or all of the feeling Will probably return eventually. This could take over a year. And as to any asymmetry, this could be the result of swelling, or scar tissue or residual crookedness from the deviated septum. If it is the first two of those it will resolve with time . If it is the last it will not.

Hi and welcome to our forum!
Hi and welcome to our forum!
Septorhinoplasty is a very traumatic procedure. The nasal bones are stripped from overlying soft tissue and underlying nasal mucosa and are then broken and repositioned. Nasal cartilage segments are peeled from overlying skin and underlying mucosa. The nasal septum is exposed, broken, and repositioned and in some cases, partially removed. In your situation, you also underwent additional functional procedures.
Postoperative swelling is composed of tissue fluid, providing nutrition to the healing tissues. It is an essential component of healing. Although 60-80% of the swelling will diminish over the first 6 weeks after surgery, it may take 18 - 24 months for complete subsidence after the procedure. Sensation over the swollen area may be dulled. The nasal tip is notorious for taking the longest time to heal.
Be patient and continue follow up care with your plastic surgeon.
Best wishes...