Mouth ulcers picking white skin with a toothpick will not heal faster, but may cause pain and is not conducive to mouth ulcer healing. 1. The white skin of the mouth ulcer is actually a collection of food debris, mouth ulcer secretions, and saliva. When the mouth ulcer on the white skin, also known as false membrane, is actually a protective film, it means that the mouth ulcer has begun to heal. Mouth ulcers usually heal themselves in about a week. 2. Therefore, it is not recommended to use a toothpick to pick the white skin, which can cause pain and is not conducive to the healing of mouth ulcers. If you have a mouth ulcer, avoid using a toothpick to pick the white skin, it is recommended to go to the hospital in time to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.