There are no blood vessels in the cornea, and if you have keratitis, its healing takes some time. If the right medication is used, the symptoms of eye pain, photophobia and tearing will begin to improve, but the condition on top of the cornea will not necessarily be relieved soon. The healing process of keratitis is long, at least 1 week in fast cases and 1-3 months in slow cases, so it is treated and analyzed on a case-by-case basis. Patients with bacterial keratitis mainly use antibiotic eye drops such as ofloxacin eye drops, lomefloxacin hydrochloride eye drops, tobramycin eye drops, chloramphenicol eye drops, etc., which will usually heal in about 1 week after medication. Patients with viral keratitis need to use antiviral medications, commonly used are ganciclovir eye drops, acyclovir eye drops, interferon eye drops, along with recombinant bovine basic fibroblast growth factor eye drops that promote corneal recovery. After medication, it will heal in about 2 weeks.