What Can I Do to Prevent Columella Scarring After Rhinoplasty?

If you have an open rhinoplasty with an incision across the columella, this scar heals usually very well. Why? Because it is in a favorable place AND your experienced rhinoplasty surgeon will take special care with closure of the incision to avoid any aesthetically bothersome scar.
There are many things you could do for the scars but it may not change much of the overall outcome.

I don't recommend any special care for the columella incision associated with open-rhinoplasty. They heal practically invisibly in everybody, so don't worry about this.
Best regards.