Talk to Eye Specialist on Eye Crust Collecting Internally Between Eyebrows Causing Irritability

Hello Doctor,

I am asking for my cousin's son.

Age: 9 years Gender: Male

Issue: - The same crust that normally forms in the corners of the eyes is collecting internally between his eyebrows on the forehead. - Due to this he gets angry and irritated very easily. - He rubs his eyes and forehead frequently. - No fever. Duration: since few months

Please guide: 1. What is causing the eye crust to collect internally between the eyebrows? 2. Is this related to eyes, skin, or sinuses? 3. What treatment or cleaning method should be used? 4. Do we need any tests?

Thank you.