I know that it would be hard for a kid to suffer from such bad problem, because that would make your child have some bad feelings. From what I know, that is perhaps resulted from an infection, such as conjunctivitis, so you really have to take care of your kid by taking him or her to the clinic as soon as possible so as to prevent further consequences. Also, try to get her some vitamins and hot compress to the kid's eyes.
Well, first, I have to say that there are many children who get sticky eyes, even they do not know how to get them. And actually it is very annoying to have sticky eyes. And for the parents, you need to know how your child gets sticky eyes, so that you can take some measures to avoid them. Generally speaking, when the eyes are infected by some irritants, it is possible to make eyes become sticky. Of course, some other symptoms such itchy eyes, red eyes can be possible too. For the treatments, there are some ways you can have a try. For example, you can just have warm compresses, which are very effective. Also, teabags can be effective too. Anyway, you can have a try.
Generally speaking, sticky eyes can appear as a result of a blocked tear duct which leads to infection. Actually it is common in babies during their first few months. Most cases of sticky eye are not serious and can be treated at home. There are some measures and solutions for your consideration. First, you can bath his eyes with saline solution. Put a clean cotton ball dampened with saline solution to his eyes. Second, if it is serious, you can drop antibiotic eye drops tohis eyes. At last, go to see a doctor when necessary.