Dry lips can be caused by dry air, by reaction to toothpaste, food, medication, lipstick, or by lip licking. Licking your lips will just make your lips more dry and chapped as the same enzymes in your saliva that break down food can affect the tissue in your chapped lips. Apply an unscented lip balm or petroleum jelly and see your dermatologist if the problem does not clear.

facial hais, close up, lips

Successful People Have Good Skin