Explaining pink eye to a 3 year old.

Me: Don't cough in your hand and rub your eyes.
Mak: Why?
Me: You know what, just don't rub your eyes period.
Mak: Why?
Me: Because, just don't.
Mak: Why?
Me: Because you're sick.
Mak: But my eyes itchy.
Me: Ok, well don't rub them.
Mak: Why?
Me: Because you'll get pink eye.
Mak: I want pink eye.
Me: No you don't.
Mak: Yes I do.
Me: No, trust me you don't.
Mak: Yes I do. I looooooove pink.
Me: Yeah, but trust me you don't want your eyes to be that color.
Mak: I think I will look beautiful.
Me: Yeah ok, with crusty, goopy, nasty, pussy eyes.
Mak: But it will match my dress.

It's like talking to a brick wall some times.