After your injections, you may be able to return to normal activities right away; however, minor tenderness and swelling can occur that usually lasts no longer than 72 hours. While these effects are mostly mild and temporary, many people opt for taking the rest of the day off post-injection in order to fully recover and allow their results time to settle in. It is important to ensure that only trained medical professionals such as doctors, nurses, or physician's assistants administer Kybella injections as part of a holistic approach to help reduce facial fat deposits.