Thanks for the question and photos. There are several ways to address retracted nostrils. The choice of which technique to use depends on the degree of retraction as well as whether there are any additional issues present in the tip. I frequently inject fillers in the nose but I do not inject fillers immediately along the nostril rims, due to the risk of compromising the nostril blood supply which can cause alar necrosis. For mild cases of retraction a rim graft can be placed. This is a thin sliver of cartilage which is taken from inside the nasal septum or from the ear. A small pocket is made along the inside of the nostril rim and the cartilage is slid into place. For moderate-severe cases of retraction, a composite graft can be used. This is a piece of cartilage with skin still attached that is taken from the portion of the ear called the concha cymba. This is the little "cave-like" portion of the external ear that sits about a centimeter above the opening to the ear canal. There is minimal to no change in the external appearance of the ear. Both of these above procedures can be done under local anesthesia or light IV sedation.Other options include the repositioning of the tip cartilages to push the nostril rims down. This maneuver is helpful if the tip cartilages are malpositioned, meaning that they are sitting up too high after a prior rhinoplasty surgery. Lastly, lateral crural strut grafts can be used. These are strong, straight pieces of cartilage taken from the septum, ear, or rib. These can help strengthen the lower lateral cartilages if they were overly thinned or weakened during a prior surgery. This can also help pinching or collapse of the sides of the tip and nostrils. I generally use an open approach for lateral crural strut grafts or repositioning, and in most cases, general anesthesia is preferable. One additional cause of extra nostril visibility is a hanging columella, the portion of the nose which sits between the nostrils. If the rims of the nostrils are normal in height but this columella is hanging, the nostrils will appear to be excessive in size. Correction of this issue may require shaving back of the septum or tucking the columella up to the septum with what we call a "tongue-in-groove" suture. Looking at your photos, the degree of retraction of your right nostril appears to be moderate while the left is pretty mild. I would advise you to seek consultations with a few revision rhinoplasty specialists to make sure you've done your due diligence. The issue is relatively straightforward to correct in well-trained and experienced hands. Best regards,Dr. Mehta