Little humidity in the air during the winter months is known to cause chapped lips. Frequent sun exposure in the summer can also worsen your condition. Another common cause of chapped lips is habitual licking. Saliva from the tongue can further strip the lips of moisture, causing more dryness. Consult a Dermatologist for the same.
Health Tips
Use a medicated lip balm and a Medicated moisturiser. Avoid cosmetics completely.