Angular cheilitis can look like swollen or red patches at the corners of your mouth. It’s caused by a variety of things, including saliva buildup, bacterial infections, smoking, and vitamin B ...

Actinic cheilitis (AC) is a precancerous lip lesion caused by ultraviolet (UV) exposure from the sun or indoor tanning beds. Lips may become very dry, inflamed, or sandpapery, and often have white ...