Can the Botox I Got Around my Eyes Have Caused the Corner of 1 Side of my Mouth to Droop?

It is important to understand that this is an unusual though foreseeable, and in my opinion, a completely avoidable problem.  This will eventually wear off.  The bad news is that people who develop this complication often have feelings of depression that seem out of proportion with the facial weakness.  I personal think this has to do with the dysphoric feelings that occur when BOTOX interferes with normal facial expression.  Because it takes a particularly aggressive lower eyelid treatment to create this type of problem.  Because there are so many options for treating physicians, I encourage you to find an alternative to the doctor who just treated you.

If an injection site of Botox, especially if using the larger volume to mix (same units but larger volume of dilution needs more volume of liquid injected) can affect the levator smile muscle near the cheek bone. Fortunately this unequal result should resolve when the botox wears off but if it is too asymmetric, some doctors would purposely try to relax the smile muscle of the other side. There is a risk that the new side may result in an even more depressed shape of the corner of the mouth and there would be a chasing game from one side to the next. often it is best to let it wear off without causing more harm.

While it is rare to have changes with the oral area after Botox around the eyes, it can occur.  In rare instances, the Botox can be injected very close to a few of the muscles that help elevate the corners of the mouth itself.  At other times, the Botox may diffuse and migrate into those muscles, even if the injections were not directly into them.  At this point, there is not much that you can do except to allow the Botox to wear off.  At that point, you then need to be careful with repeat injections, and make sure that you are being injected by a board certified surgeon.  I hope this helps.