Okay this sounds silly and i thought it was silly too but amazingly it works its a natural remedy! Try a teabag put it in hot water like you are making tea and then use the tea bag over your eye(s) drip some tea in your eye(s) directly from the teabag then hold it over your closed eye(s). I had pinkeye many times as a child and never saw a doctor thanks to this. (I always used my friends make up)
Call the doctor or pharmacist. They sell OTC products. It is highly contagious so stay home and wash hands. Some doctors prescribe drops, others let it run it's course. Boil some water, soak a washcloth and wring it out( hot but not enough to burn skin) placing it over the eye will sooth the itch and irritation.