Is it possible to do a non surgical nose job to reduce width and roundness or would I have to get a rhinoplasty? (Photo)

Thank you for your question and photograph. I would recommend you seek an in-person consultation to discuss your nasal concerns, as you may be a candidate for filler placement to correct subtle asymmetries between the right and left sides, depending on your goals.  In your picture it does not appear that you have a wide or round nose, but your nasal tip can not be fully appreciated.  

 A non-surgical nose job involves placing temporary injections in the nose to make it bigger, wider, and taller, since this requires adding more bulk to the nose. When patient's want to make the nose smaller, a surgical rhinoplasty is performed  to obtain the desired result. The bulbous tip is reduced with a combination of suture techniques and conservative cartilage removal applied to the lower lateral cartilages of the nasal tip. For more information and many examples, please see the link and the video below

Most non-surgical rhinoplasties involve adding volume with fillers. To reduce the height, narrow the bridge, or define a bulbous or rounded tip requires refining the structure or reduction of the excess tissue. The "dent" on the right side may respond to fillers, but correction of the proportions of the nose will require a traditional rhinoplasty.John Standefer MD