it could be that your hand had some dirt on it the last time you rubbed your eyes, and that's why the burning and crust.
I think one of the biggest signs of pink eye.... is your eye turning pink
CONJUNCTIVITIS
- An infection of the inside of your eyelid. It is usually caused by allergies, bacteria, viruses, or chemicals
Red, irritated eye.
Some burning and/or scratchy feeling.
There may be a purulent (pus) or a mucous type discharge.
To prevent the spread of the infection:
Wash hands throughly
Wash any clothing touched by infected eyes.
Do not share make-up. If the infection is caused by bacteria or a virus you must throw away your used make-up and buy new make-up.
Do not touch the infected eye because the infection will spread to the good eye. IMPORTANT!!!
Pink Eye Spreads Very Easily!