2. Allergy. Allergies are a common cause of swollen lips, and an allergy is simply your body reacting against a certain substance you are allergic to. When this happens, your body releases a chemical ...

She has a very swollen upper lip, but she's not afraid to show it. The model filmed and shared a video to Instagram stories and also to Twitter from the dentist chair.

See Kris Jenner’s Swollen, Puffy Lips! By Zach Johnson. July 2, 2012. ... 56, suffered an allergic reaction that caused her upper lip to swell during a family vacation in the Dominican Republic.