The white color of the ulcer is often clinically referred to as a pseudomembrane, and scraping it off can cause pain and is not conducive to ulcer healing.
Mouth ulcers above the layer of white film, in fact, by the mouth ulcer secretions, food debris, saliva composed of the aggregate, clinically known as the pseudomembrane. When the ulcer wound on the white false membrane, it means that the mouth ulcer has begun to improve, the immune cells have overcome the invasion of bacteria, began to repair the damaged tissue.
Therefore, it is not recommended to scrape off the pseudomembrane, which can cause pain and is not conducive to ulcer healing.
If ulcers appear, it is recommended to go to the hospital in time, under the guidance of the doctor to give targeted treatment or treatment.