I'm assuming you had normal function before your injection of Botox. Any injection of Botox in the area of the mouth has the risk of causing temporary facial paralysis. Depending on the amount of Botox used you eventually will completely recover to your baseline however it is unpredictable when that would be. I would assume 1-2 months. It likely will slowly get better with time. Because of your history of Bell's Palsy and I assume mild weakness of that side of your face I would be very careful about how much Botox you had applied to that side. The reassuring thing is that Botox is always temporary.



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