#AskTheExpert My son, almost 6 now, has been suffering from a kind of allergy symptom for several months. At the initial stage, the doctor told us that it might be pollen/dust or insect allergy. So, we made extra effort to keep the house clean from pollen or dust or insect. But the allergy symptom not only continues but is getting even worse and now it's happening every day. According to my observation, the allergy usually occurs when he is under stress - while studying, writing home works (just an observation). Kindly advise Doctor.