1 day post Kybella injection, could I have nerve damage. Uneven smile and mouth crooked when I talk. Advice? (photos)

Kybella (Deoxcholic Acid) is the first non-surgical, FDA approved injection to reduce submental fat. Some of the side-effects include bruising, swelling, redness, numbness and paralyzing the marginal mandibular nerve. Although the nerve usually regenerates itself in 4-12 weeks, I’d still advise you to follow up with your injecting physician. 

In the original study leading to FDA approval, nerve damage like this happened in 4% or patients. Most resolve in only a few weeks. Only one of those took months, but that could happen. In no case was it permanent.