Swollen lips may be caused by allergic reactions, injuries, chapping or sunburn, infections, and cysts called mucoceles. The swelling comes from either inflammation or built-up fluid under the skin.

Allergic contact cheilitis (ACC) is allergic contact dermatitis (ACD) affecting lips. It causes swelling, inflammation, and possibly scaly skin. The term “cheilitis” refers to short- or long-term ...

This is the hilarious moment a woman's lips swelled after a bee sting, giving her a Katie Price-style ‘trout pout'. Footage shows the farmer with an enlarged upper lip following the sting, which ...

Dear Dr. Roach: For over two years, my wife has been having a problem with her lower lip. From morning on, it swells, irritating her and causing her to lick her lips constantly. She has seen doctors, ...