Keratitis is common bacterial keratitis, viral keratitis, fungal keratitis, etc., the patient can follow the doctor’s instructions to use antibiotics, antiviral, antifungal and other drugs to treat, the specific treatment drugs and the patient’s cause of disease. 1. Bacterial keratitis: If it is bacterial keratitis, patients can follow the doctor’s instructions to use antibiotics to control inflammation, such as levofloxacin eye drops, erythromycin eye ointment and so on. If the infection is serious, patients can also take oral levofloxacin tablets, cefaclor and other drugs. 2. Viral keratitis: If it is viral keratitis, patients can follow the doctor’s instructions to use antiviral drugs, such as acyclovir eye drops, ganciclovir ophthalmic gel and so on. Serious disease needs to be treated by oral antiviral drugs, such as acyclovir, ganciclovir capsules. 3. Fungal keratitis: patients with fungal keratitis can use natamycin eye drops and amphotericin B eye drops as prescribed by the doctor to control inflammation and promote the recovery of the patient’s condition. It is recommended that patients with keratitis consult a doctor in a timely manner to assess their condition and under the guidance of a professional doctor.