How can I regain muscle control after Botox in crows feet caused a lopsided smile? (Photos)

It is  best to avoid further injections until this dose of Botox wears off. It will improve in 2-3 months. Keep smiling, it will stimulate paralysed muscle to create new motor plates faster. It  doesn't look that asymmetric to a casual observer! Be patient. Good luck.

Hello KtLdn,
Im sorry to hear this, It may be that the injection point was slightly deep and it has hit your smile muscle. The effects should wear start to wear off from approximately 4-6 weeks. I would recommend that you follow up with your injector and let them know what has happened. A review in person would be the best way to do this. Monitor that you do not experience any other changes in your facial expressions over the next few days just to rule out other causes. 
Wishing you all the best 

I'm so sorry about your uneven smile after Botox. Your Botox dose is rather small and you should recover sooner as opposed to taking longer to regain muscle function of your smile muscles. I would strongly suggest a full evaluation with you injector for a better assessment of time to recover. 
Best. Dr. ALDO 

It seems as though some of your Botox affected your zygomaticus muscle, but thankfully it is not completely paralyzed. In this scenario, I would not suggest paralyzing the other side for symmetry. Your smile may not be as bad as you think, and it will become symmetrical sooner than you expect. Wishing you well. Dr Joseph

Thanks so much for reaching out. With Botox the only option is to wait it, usually lasts about three months. I hope this helps :-)