Skip balm at your own risk, advises Prevention. Cold wind and dry indoor heat deplete your lips’ natural protective barrier, so they can’t hang on to the water they need to stay soft and smooth (plus, your lips have no oil glands of their own to keep them hydrated). Simple solutions like petroleum jelly can create a protective coating that will prevent and treat chapped lips. Avoid licking your lips too, since the enzymes in saliva can increase irritation, causing swelling and even cracking, NYC dermatologist Jessica Weiser, MD, told the magazine.
Source : https://www.rd.com/health/beauty/winter-skin-habits/274