Green crust after sleeping with a stye, what to do?

Infection: It sound like you may have pink eye (conjunctivitis). You may want to consult your PCP for an accurate diagnosis and treatment.

Pink eye, sty: The material from a sty that has burst will usually be yellow or grey. Green crust usually means bacterial conjunctivitis. Warm compress, clean thoroughly with warm water, see your eye MD or regular doctor for medicine. You are most likely contagious, so wash your hands, disinfect door knobs, change pillow cases and hand towels.