Congratulations on your rhinoplasty and I am glad that you are happy with the results. Before you proceed with the HA nose fillers, you should check back in with your rhinoplasty surgeon to see if he has any other solutions for you.
Fortunately, one of the advantages of a total autologous rhinoplasty, of which I am a strong advocate of, is that in comparison with an implant rhinoplasty, the nasal dorsum is made of your own tissue. Hence, there is a lower risk of the HA filler injection causing an infection if done properly, and no risk of rejection of the nasal implant or capsular contracture.
Whilst it is safe for you to have fillers to the nose after autologous rhinoplasty, you should highlight this to the doctor that is performing the filler injections. As Dr. Justin Boey has pointed out, the vascular anatomy of your nose may have changed after the rhinoplasty surgery and there is an increased risk of vascular complications with filler injections after surgery.
Personally, I have given HA filler injections without any complications to patients who have had previous rhinoplasty. Some of my patients have opted for a revision of the nasal dorsum using only autologous tissue so that they do not have to undergo repeated HA injections. Should this option be available to you, it could also be another possibility to consider.
I hope this answers your queries. Have a great week ahead!
Dr. Terence Goh