In most people's mind, pink eye is contagious. I was told so when I was just a little girl that only one eye contact with the people infected will spread the pink eye to me. Pink eye is the so called conjunctivitis in medical term, referring to the infection or inflammation of conjunctiva. According to different triggers, there are mainly three types of conjunctivitis, viral, bacterial and allergic conjunctivitis. If it is caused by allergic reaction, it is not contagious. Get out of touch with allergens can make the reaction go very soon. Yet if it is bacterial or viral conjunctivitis, then it is strongly contagious. Sharing the same towel or rubbing eyes with contaminated hands can easily cause infection. Some virus, for example herpes, is very strong, and it could cause infection by using the same toilet, and it tends to last for months even years. To avoid infection, you should pay more attention on hygiene habit. Don't share towel and cups with others. Never rub your eyes with hands, especially with hands you didn't wash. If you need to share the toilet with the infected person, then remember to sterilize it each time before you use it.
