Generally speaking, the recovery period of contour surgery needs at least 6 months. As you described facial paralysis, this is bound to happen in the previous month, so judging from your current situation for more than ten days, you don't have to worry too much about occasional facial paralysis. Just follow the doctor's advice and continue your daily recovery.
And if you have cheekbone surgery, you will even have difficulty opening your mouth a month ago, so you must pay attention to your diet and don't eat hard or irritating food. At the same time, don't force yourself to do mouth training, which is easy to shift! Very dangerous!
What you need to do is to relax and then give time to slowly show the effect.
Of course, if this numbness is still obvious after two months, then I personally suggest that you need to go to the hospital for examination to ensure safety.
I hope my answer can help you.