The most important thing to do is to remove the cornea from the following areas. 1. topical medications can be chosen from topical vitamin E. Adhering to the topical vitamin E milk is good for promoting the fading of the cornea, but you can also choose local 75% alcohol sterilization with a sterile disposable syringe needle to remove the yellow and white particles inside, and later topical antibiotic creams, such as fusidic acid cream or efficient iodine solution to avoid infection. 2. The treatment can also be done by electrocautery or carbon dioxide laser, which can carbonize the cornea through high local heat, but avoid long operation time to avoid the formation of depressed scar. 3, you can also choose to use liquid nitrogen cryotherapy, using the extremely low temperature of liquid nitrogen to promote local tissue cell necrosis, shedding, so as to achieve the purpose of removing the cornea.