 The dosage of the ointment is every 4 hours during day and once before bedtime.The dosage of the solution is 1 drop in the conjunctival sac hourly during the day and every 2 hours during the night until definitive improvement, then 1 drop every 2 hours during the day and every 4 hours during the night.Therapy is continued for 3–4 days after healing is complete, as demonstrated by fluorescein staining.