The Limi Hospital Ltd. - This medical condition is characterized by inflammation of the lips, caused by irritated skin, allergies, frequent sun exposure, constant picking at the lips, vitamin/mineral deficiencies, frequent lip
When You've Got Cheilitis, Lip Balms Aren't Enough For Chapped Puckers
Cheilitis - Wikipedia
Allergic contact cheilitis from a lipstick misdiagnosed as herpes labialis: Subsequent worsening due to Zovirax® contact allergy - Özkaya - 2007 - Australasian Journal of Dermatology - Wiley Online Library
Cheilitis: Causes, Treatment, and Prevention - Skinsight