My whole right eye has been red for the past 12 hours. it is not irritated, itchy and there is no discharge. i wear contacts and take them out every night. i have no past history of eyeproblems. what should i do?

See Doctor: This could be a problem related to fit of your cl or cl over wear. Best to see your eye doctor to make sure your eye is not infected. Stay out of your cl until you get seen.

Allergic conjunct. : Use an antihistamine eye drop and this should help. Clean your contacts well. Good luck.

Many things: Red eyes can be from inflammation from chronic allergies, dry eye syndrome, blepharitis (minor infection of the eyelid margin), meibomianitis (blocked ducts on eyelid margin. In addition, you may have inflammation on the top of the eye, episcleritis or scleritis or in the front to the eye, irtis. You need the right diagnosis to get the treatment to get rid of red eyes. You need an eye exam.

See an Eye MD: Although your eye is not irritated, being a contact lens wearer puts you at risk for corneal abrasions as well as infections, including ulcers. You can try artificial tears over the counter, however, if you are still experiencing the same symptoms after 24 hours, it is best to see your ophthalmologist.