I have continued numbness 2 weeks after injections. Is this common?

Kybella, the first FDA-approved injectable treatment to reduce "double chin," is a very effective non-invasive procedure, but does have several temporary side effects that are important to be aware of.  While stinging only lasts for about 15 minutes following Kybella injection, there are several other temporary post-treatment effects to consider.  The most common side effect is swelling, which usually lasts several days but can last up to one full month.  Most of my patients also report a feeling of "jiggling" when they walk for several days after treatment.  Numbness and tingling are also very common and can last up to one month.  In the original Kybella studies, subjects were re-treated with Kybella every 4 weeks (anywhere from 3-6 injection treatments were performed), but in clinical practice, most doctors are waiting 6-8 weeks in between treatments, until most side effects have resolved before reinjection.  Waiting 6-8 weeks is a benefit for another reason as well: you may see continued improvement for up to 8 weeks following Kybella treatment.  As a Kybella injection trainer, I advise injectors to let patients know that when Kybella treatments are performed on a Thursday, patients will be ready to return to work and social commitments the following Tuesday, as a rule of thumb.

Bruising, redness, swelling, firmness, and numbness may occur and can take approximately 4 weeks to resolve. We typically advise patients to avoid blood thinners a week prior to injection to minimize risks of bruising. We also recommend patients sleep with the head elevated, limit salt intake, and ice for the first 48 hours to minimize swelling. 

I tell my patients to expect swelling and jiggling for 2-4 weeks. Numbness lasts about 6 weeks. And then there are lumps and bumps for up to 8 weeks as well. Swelling does not fully resolve for a few months so i don't re-inject for a few months.My best,Dr. Nazarian@drsheilanazarian on Instagram

The patients are told what to expect after the use of Kybella. Swelling, some minimal redness and numbness can be present and persist for up to thirty days but my patients are experiencing about one week of symptoms.

Yes, numbness is one of the most common side effects of Kybella and may last for several weeks. Generally, it resolves on its own. The best thing to do is just be patient! 

Thank you for your question.  Numbness is quite common after kybella injection and it can last up to 4-6 weeks.  This is generally when we consider reinjectingbut can always wait up to 8 weeks for the reinjection.