Keratitis should use different eye drops according to the different causes of keratitis: 1, bacterial keratitis: anti-bacterial eye drops such as tobramycin, levofloxacin type are recommended; 2, viral keratitis: antiviral eye drops such as acyclovir, ganciclovir type are recommended; 3, fungal keratitis: anti-fungal eye drops such as natamycin, amphotericin, etc. are recommended. Also, fibroblast growth factor, epidermal cell growth factor, a class of drugs, can be used to promote the healing of corneal damage. Patients are advised to use the appropriate allopathic eye drops for treatment under the guidance of a medical professional.