Lawrence O'Donnell. Lawrence O'Donnell was born on November 7, 1951 in Boston, Massachusetts, USA as Jr Lawrence Francis O'Donnell. He is a producer and writer, known for The Last Word with Lawrence O'Donnell (2010), The McLaughlin Group (1982) and Olympus Has Fallen (2013). He has been married to Kathryn Harrold since February 14, 1994. They have one child. See full bio Â».
Cracks or sores in the corner of the mouth, also known as angular cheilitis, angular stomatitis, or perleche, can be rather annoying, like a paper cut â small, and irritating. Angular cheilitis is actually an inflammatory condition, and can cause bleeding and ulceration in addition to the painful cracks or sores.
Sores on the roof of the mouth can also be caused by gums and other oral diseases. A gum disease is an inflammation of the gum line that can progress to affect the surrounding and supporting parts of your teeth. When left untreated, gum disease can dangerous.