Answers (1)
Yes, stuff normally comes out of your eyes and it might collect into something resembling mucus or even wet threads. There is this wonderful produce called Kleenex that takes care of that.
Now let's get real. A cold tends to follow about two weeks after a blue spell. You can decide not to be blue, so you can decide not to have colds. I learned that in 1974 and I have been cold free ever since.
Mucus is good stuff. It keeps the body clean and most people need all they can get. Regardless of what you may have heard, it is vitamin A that stimulates mucus, not milk. Milk is a good source of protein, not so good for calcium. You learn things like this by studying books about nutrition. You should do that because very few people know anything useful about nutrition, not even doctors, so you just have to learn it yourself.