Question: What is (are) Leukoplakia ?
Answer: Leukoplakia is a condition in which thickened, white patches form on the tongue, gums, inside of the cheek, or sometimes on the outer female genitals. Although the sores can vary in appearance, they are usually white or gray; thick; and slightly raised with a hard surface. The condition is thought to be caused by irritation, but the cause is not always known. Tobacco is considered to be the main cause of its development in the mouth. Most patches are benign, but a small percentage show early signs of cancer. Removing the source of irritation may cause the condition to go away, but surgery to remove the sore(s) may be necessary in some cases.
Source: GARD

Question: What are the treatments for Leukoplakia ?
Answer: How might leukoplakia be treated? For most people, removing the source of irritation is important and often causes the lesion to disappear. For example, if tobacco use is thought to be the cause, stopping tobacco use usually clears the condition. Dental causes such as rough teeth or fillings should be treated as soon as possible. When this is not effective or if the lesions show early signs of cancer, treatment may include removing the patches. The lesion is usually removed in the health care provider's office using local anesthesia. Leukoplakia on the vulva is treated in the same way as oral lesions. Recurrences are common, so follow-up visits with a physician are recommended.
Source: GARD