I'm turning 42 next month, and I'm thinking I might have an allergy. I've never had any in the past. But, I have a constant phlegm in my throat. I have to clear my thoat or cough and it will go away for a while and then come back. I have no other allergy symptoms. It's not real bad, but I've had it for a couple of months now. I'm wondering if maybe I've got an allergy to something now. Is it common to get them later in life?View Thread