Can you lick your lips with your tongue when they are dry?

　　Can you lick your lips with your tongue when they are dry?

　　Saliva contains substances such as mucus protein, salivary amylase and inorganic salts. When you lick your lips, it is like applying a layer of paste to your lips. When the wind blows, the water evaporates, forming a dry film that shrinks. The dryness becomes more severe, and may even cause the lips to swell, crack and bleed. The more I lick my lips, the drier they become. The correct way is to apply skin care cream or vegetable oil on your lips, drink plenty of water, and supplement vitamin A appropriately.