Recurrent episodes of keratitis are incurable.

If keratitis is caused by a viral infection, it usually leads to symptoms such as red eyes, eye pain, photophobia, and tearing. After the inflammation subsides with antiviral medication treatment, the virus will hide within the nerve fibers of the corneal tissue. When the body's immune system is weakened, during a cold, or when fatigued, the virus can replicate again, causing a recurrence of keratitis.

Therefore, to reduce recurrent episodes of keratitis, patients should focus on regular physical exercise to strengthen their constitution, maintain sufficient sleep, and avoid catching colds. These actions can enhance the body's immunity, effectively reducing the frequency of keratitis attacks, and thus protect eye health.