Pink Eye vs. Allergies: How to Tell the Difference - Verywell Health
Pink eye is a term commonly used for conjunctivitis , which is inflammation or infection of the conjunctiva , the transparent membrane that covers the white part of the eyeball and inner eyelid. Similar symptoms of redness, itching, and watering of the eyes can also be seen in allergies (allergic conjunctivitis). Infectious forms of pink eye may be caused by bacteria or a virus. Allergies are an abnormal immune system reaction triggered by usually harmless substances (allergens) such as pet dander or pollen. Conjunctivitis accounts for approximately 6 million cases annually in the United States. The most common type of infectious conjunctivitis in the U.S. is viral conjunctivitis. Allergic conjunctivitis is also very common, affecting up to 30% of people at some point in their life. ProfessionalStudioImages / Getty Images Pink Eye vs. Allergies The term pink eye is most commonly used for the types of conjunctivitis caused by infection...