Thank you for sharing your insights Dr Wei. Like Kerry Kitchen, my 5yo constantly has runny and crusty nose and is the only one in class to the point she is starting to feel conscious. She does not have milk before bed and hardly have snacks between in the evenings or even during the day ie there is the occasional biscuit and cookies but I try as far as possible to give her fresh food. I have been advised to do a hearing test (she can hear the slightest whisper I make) but seems to have difficulty concentrating in school (too young?). I have been told there could be ear infection or fluid in her ears…it all sounds scary but I do not know what else to do.