Hello 'dayleeg', thanks for your question. Without a side profile picture and more details of your rhinoplasty surgery, it is difficult to ascertain exactly what is the cause of this bump on your nasal sidewall. If you just noticed it 2 months postoperatively, my guess is that it is not a new hematoma unless you recently had it hit by something. You may have had it since surgery and are only now noticing it since the swelling has been going away. Possibilities at this stage are if an overly-aggressive dorsal hump reduction was performed, you might have something called a saddle-nose deformity due to lack of support of your central nasal septum, leading to this effect. Another possibility is if an osteotomy was performed to narrow your nasal dorsum, sometimes there can be uneven shifting of the nasal bones leading to these irregularities. It might also be scar tissue, which tends to gradually soften and smooth out over time with massage. I recommend seeing your board-certified plastic surgeon for follow-up to address your concerns so that they may perform a thorough examination to determine the etiology and manage this with you. Good luck!
-Dr.92660