Keratitis is divided into bacterial keratitis, fungal keratitis and viral keratitis, etc. Commonly used anti-inflammatory drugs are levofloxacin eye drops, natamycin eye drops and acyclovir eye drops, etc., according to the actual situation of the individual in the doctor’s guidance under the use of medication, can not be used without authorization. 1. Bacterial keratitis: bacterial keratitis is caused by bacterial infection, the onset of the disease is usually more acute, usually have a history of corneal trauma or a history of wearing corneal contact lenses, you can use tobramycin eye drops or levofloxacin eye drops under the guidance of a doctor, you can also use levofloxacin ophthalmic gel coated, if necessary, you can take cephalosporin antibiotics orally. 2. Fungal keratitis: most of the fungal keratitis have a history of plant damage to the cornea, is the need to use antifungal drugs, such as fluconazole eye drops, etc., can also take oral antifungal drugs, such as ketoconazole. 3. Viral keratitis: viral keratitis is mainly caused by herpes simplex virus or parotid virus infection, and requires the use of antiviral drugs, such as acyclovir eye drops, you can also use ganciclovir ophthalmic gel to smear or oral acyclovir tablets. Specifically recommended to professional hospital ophthalmology consultation, under the guidance of the doctor for the use of medication, can not be unauthorized use of medication to avoid adverse effects.