TMJ Botox gave me jowls - how can I get rid of them? (Photo)

Hi I am a 29F 132ibs and have been getting Botox in my TMJ as well as other areas for three years now every three months. My TMJ grinding caused me to have terrible migraines so I have gotten so much relief with it. I tried acupuncture, wearing a night guard and pain relief. I know have jowls and I really want to get rid of them.. I was thinking ultherapy but am open to alternatives to improve my lower face.