Smile is not the same after masseter muscle botox? (Photos)

Sorry to hear about your Botox experience. It appears the Botox diffused into an adjacent muscle responsible for your ability to smile. The muscle was either the risorius or the zygomaticus major. Either way, the Botox will wear off over the next 3-4 months and your smile will return to normal. I'm not sure what exactly your injector did wrong, but the injections were either placed too anterior (forward) or superior (high) along the masseter and/or overly dilute Botox was used resulting in easier spread to adjacent muscles. Hang in there, your smile will return to normal.

Hi- .  Yes it will come back. It may take 3-6 months but it will come back to normal. Unfortunately this is a very common side effect following botox injection to muscles around the mouth or involved with moving the mouth/jaw like the masseter muscle. Just remain patient knowing it is only temporary which is the positive and negative of botulinum toxin. Good Luck!