A grain of frosted texture on the lips is salivary gland glands, there are small salivary gland glands on the lips to secrete saliva, which can produce a moisturizing effect on the lips, and can flush the tooth surface on the side of the lips, playing a greater role in the maintenance of intraoral conditions, once if you produce lip biting or have bad habits of lip licking, it may cause local blockage of the salivary gland ducts, there will be cysts of mucus glands. If this mucus gland cyst breaks down, there will be a water, which is our saliva, and if it does not break down, there will be a small vesicle, which usually needs to be surgically removed, and after the removal, the bad habit of lip biting will be corrected, so as to avoid recurrence. After the surgery, avoid eating spicy and irritating food, do not eat seafood, and to ensure the cleanliness of the wound, you can use local mouthwash, such as chlorhexidine gargle, and can take appropriate oral anti-inflammatory drugs, generally after 5-7 days to remove the stitches.