Pink eye, also known as conjunctivitis, is an inflammation of the clear tissue covering the eye's white part and the eyelid's inside. It can be caused by viruses, bacteria, allergens, or irritants. While the condition is often mild, it is highly contagious in its viral and bacterial forms. This means knowing when to stay home and how long to prevent spreading it to others is essential. For same-day pink eye treatment, visit the ...