My lips do not meet naturally. Mouth is open at rest. What can be done to fix it?

Hello, You have hyperactivity of the muscle lifting up the corner of the mouth. This can be corrected with injection of Botox or Jeuveau, which works quicker with onset in 2 days.

This is my expertise and a huge portion of my practice. Asymmetry is normal and expected. Buccal fat pad gives slimming not symmetry. Masseter botox will make you slimmer and make the jawline more loose. Fillers help give shaping and contouring. If you want perfect or close to perfect symmetry...

It's difficult to say without the benefit of a formal evaluation. This is my expertise and a huge portion of my practice. Asymmetry is normal and expected. See an expert who does facial shaping with surgical and non surgical methods to get a comprehensive option. Best, Dr. Emer.