10 months after rhinoplasty
At 10 months it is very unlikely that this is swelling. However, to consider a revision rhinoplasty I would advise you to wait for atleast 1 year. Usually the swelling after rhinoplasty is symmetrical. Sometimes asymmetrical swelling also does occur but this doesn’t look like an asymmetrical swelling. It is significant likely that you will need a revision for correction. I would suggest you go to your operating surgeon and discuss the possible options.