The black marks left behind after keratitis are mainly melanin deposits, which will generally fade and subside on their own, and can be supplemented with vitamin C, ointment, etc., and laser treatment can be used if necessary.
1. The black pigmentation left behind by keratitis will fade and subside on its own after a period of time. You can eat more fresh vegetables and fruits rich in vitamin C in your daily life.
2. You can apply some ointment to repair the damaged skin, such as vitamin E.
3. If the black pigmentation left behind by xerostomia is more serious, laser treatment can be used.
The black marks left behind after xerostomia do not go away for a long time it is recommended to go to the hospital and consult a professional doctor. The use of drugs should follow the doctor’s advice.