What is oral leukoplakia?

The treatment of oral leukoplakia drugs are generally hydroxychloroquine or Kouyanqing granules and vitamin A. In addition, there is a local application of drugs called vitamin AD drops, can be locally applied. But oral leukoplakia because it belongs to precancerous lesions, so it is recommended to do surgery in the early stage, only after surgery, do pathology to determine whether precancerous lesions or cancer, so in order to do further treatment.