Botox to lift the corner of my smile?

Lifting around the mouth can be treated with Botox.  In our practice we combine Botox with other fillers "layered" on top to get the most conservative natural look. Please see a facial sculpting expert. Best, Dr. Emer

Botox can be placed in the DAO muscle for a slight uptick in the corner of the mouth.  However the lateral commissure of the mouth is, to some extent, what it is: the corners may not be even because off where the commissure inserts.  

A close analysis of the facial asymmetry in question is necessary.  Often, if you look closely enough, asymmetries from one side of the face to the other often balance with other features on the same side of the face.

There are also techniques to permanently change the position of the corners of the mouth with DAO reduction or division.  These are technically challenging cases and are best performed by surgeons with experience in this area.