Dry air sucks moisture out of your lips. So Dr. Bihova recommends using a humidifier at home and at the office. Protect with lipstick . Years and years ago, lipstick tended to dry the lips. For maximum effect, reapply often.
Lip balms are also effective.
Build a barrier. Seriously chapped lips need strong protection in the form of a barrier ointment or cream. Dr. Kakita recommends Vaseline petroleum jelly, Aquaphor or Bag Balm applied often. Boost your lip protection to a balm with sun protection factor, or SPF, of 30, Dr. Kakita advises. Look for extra-protective lip balms in sporting goods stores.