" Pink eye is the common name for Conjunctivitis. When the outermost layer of the eye, the Conjunctiva, becomes infected, it becomes inflamed and is incredibly contagious. It can either be viral or bacterial. It can also be caused by an allergic reaction. Common symptoms of pink eye include redness, swelling and watering of the eyes. You may also have a discharge, a sign of bacterial conjunctivitis. To prevent pink eye, avoid those currently with the ...