With an ultrathin upper lip, a lip advancement procedure would be preferred over injectable fillers. It would provide a permanent increase in vermilion show as well as being able to create a more defined Cupid's bow of the central upper lip.
This is difficult to answer without photos. Everyone has some asymmetries. I recommend getting a formal consultation. Fillers can be used to improve lip symmetry. I hope this helps.
Hi TO3784,
Each practitioner will have a different policy. If you were my patient and I had injected you to begin with, I would not charge you for any correction that was necessary. If you had your injection elsewhere with a different injector and came to me after the fact...