My 4 year old has some type of sore behind his ear, right where the ear flap connects to the scalp. I noticed it at naptime because his hair was matted down at the spot and caked with a yellowish pus/gunk, that I can best describe as similar to when you are sick and you have sleep in your eyes that cakes over them & seals them shut. Once I got it cleaned with a warm rag, the skin itself is very red with a sort of glaze over it and a thin line of white in the exact crease of the ear/scalp. Is this an ear infection or a cut that got infected or something? Please assist. Hi, can I answer your health question? Please type your question here...