Ask an Eye Doctor and Get an Answer ASAP
At first it sounds like you have a subconjunctival hemorrhage. This is just a busted blood vessel (like a bruise). It goes away in a few weeks without any long term harm. However, for the redness to last this long, you may be suffering from episcleritis (an inflammation of the eye, similar to arthritis of the joint). You need to have your eye checked by an eye doctor.