Botox in massetter caused my smile limitation. I did enject 20 units per side and two weeks after I noticed droopy cheek and horrible smile. It’s been 7 months and it got much better but corner of my mouth still not going up and stretch out like before. I got my money back and complained to my doctor about this procedure.Meanwhile can someone tell me how much longer I need to wait or what facial exercises can help to speed the recovery?