This ointment is used to provide temporary relief from corneal edema (swelling inside the outer surface of the eye).Muro 128 (sodium chloride 5%) Ophthalmic OINTMENT (3.5g)$15.04PriceQuantity*Add to CartHow to Use Wash your hands. Pull down the lower lid of the affected eye. Apply a small amount (1/4 inch) of ointment to the inside of the eyelid. Apply every 3 or 4 hours or as directed by a doctor. Replace cap after use. To avoid contamination do not touch tip of container to any surface. Side Effects Temporary eye burning and irritation. Storage Store at room temperature Keep out of reach and sight of children Do not freeze Do not use it after the expiry date (the expiry date refers to the last day of that month)