Belkyra injections are a safe procedure. However, like with any treatment, it may come with some side effects, like temporary swelling, pain or redness at the injection site. These typically resolve within a few days to a week. Some patients might experience numbness or tingling, which also tends to be temporary. Downtime is minimal, and most individuals can resume regular activities immediately after the treatment. Noticeable results usually appear within a few weeks as the body gradually eliminates the targeted fat cells. Full results appear over several months as your chin area becomes more sculpted and defined. Individual responses to treatment may vary.