Virex is an antiviral medicine which treats eye infections caused by Herpes simplex virus. It works by preventing the multiplication of the virus on the surface of your eyeball (cornea). This stops the production of new viruses and clears up your eye infection. Virex is for external use only. Take it in the dose and duration as advised by your doctor. Wash your hands before and after applying the medicine. Hold the tube close to the eye without touching it. Gently squeeze the tube and place the medicine inside the lower eyelid. It may cause stinging sensation and eye redness...