What is the best way to correct facial asymmetry? (photos)

Hi! I’m a 36 yo f. I’ve always had asymmetry, but after being dx with Bells Palsy 8 years ago & aging, the asymmetry is much more apparent. What is the best way to treat this? I’ve tried botox for eye lift, filler to the lips, but the “pull” to my left side still there. Ive also tried a few mono PDO to my right upper lip & it does help somewhat, but results don’t last more than a couple of months. I’m ready to do something longer lasting as I feel I’m spending a lot for little result. Thx!!