Tofen is used to treat inflammation (redness and swelling) due to allergies of the eye. It helps to provides relief from red, itchy and watery eyes. Tofen is for external use only. Follow the instructions given by your doctor and use this medicine regularly to get the most benefit. You should gently squeeze the dropper and place the medicine inside the lower eyelid and wipe off extra liquid. Always wash your hands and do not touch the end of the dropper. This could infect your eye. Make sure you remove contact lenses if you wear them and wait for at...