Infective conjunctivitis is one of the most common eye infections, characterised by inflammation of a thin, transparent tissue known as the conjunctiva. That covers the white part of the eye and lines the inside of the eyelids. Infective conjunctivitis can be due to infection with a virus, a bacterium, allergens, or other non-infectious irritants. Conjunctivitis: pinkeye might be red, itchy, discharge from the eyes, and often a gritty feeling. You can help prevent infective conjunctivitis by practicing good hygiene, including washing your hands and not touching your eyes. Antibiotic eye drops or ointments are used for infective conjunctivitis that is caused by bacteria, but many viral cases resolve on their own.