Conjunctivitis, or pink eye, is a very common eye condition in children. It causes red, irritated and sticky eyes. The image shows eyes of a child with conjunctivitis. The infection can be bacterial, viral or allergic depending upon the symptoms. If the child has cold and conjunctivitis, the infection is supposedly viral. If a thick yellow discharge is produced, it might be due to bacteria such as staphylococcus, streptococcus, or hemophilus. In case, if the eye seems to be itchy and swollen, the child is supposed to be suffering from an allergic reaction to an irritant such as dust, pollen, or smoke.