Can my nose still be swollen as I'm 9 month post rhinoplasty and the tip still big? (Photos)

Thank you for your questions and for sharing your photographs.
Swelling around the tip of the nose is usually the last thing to settle and will take 12 to 18 months, only then you would be able to see if you require any treatment. I appreciate that it is frustrating, but I am afraid you need to be patient before one can assess any further surgical intervention particularly that a revision surgery carries significantly more risks.
I would advise you that you consult with your surgeon. He/she is in the best position to advise you as only your surgeon knows the findings during your surgery and what techniques and suture materials were were used during your operation.
Best wishes,

Tip swelling after rhinoplasty: swelling of the tip after rhinoplasty typically takes at least a year to resolve. In people with very thick skin it may take more like two years. By nine months enough of the swelling should be resolved that your nose looks thinner than your preoperative nose though not its final best. I cannot believe that your nose tip is twice the size that it was preop. I think you just are seeing it that way because you are understandably getting frustrated and impatient. In any event I would not consider any additional surgery until at least a year has gone by. Sometimes a dilute dose of a Cortizone injection to the tip area can speed up the resolution of the scar tissue and swelling. If you had an open rhinoplasty the scar tissue and swelling takes longer to resolve then if you had a closed rhinoplasty. In any event try to be patient. Some additional improvement should occur.