I scratch my eye almost......everyday I keep putting drops but yet I scratch and it turns out to be red and now my right eye hurts so much when I scratch it.some peaple say its caused because of phlegm apparently I have it! and some say its because I'm allergic to dust,that's what my friends assumed and I THINK I'm allergic to dust because if the place or whatever is too dusty ill start sneezing and scratch my eyes more harder because I cant help it.I cant really tell,what do you think doctor?