I have always had allergies, but this year I developed shortness of breath. My Dr. Recommended that I try Mucinex D along with Benadryl which I take. I started with one at night and one in the morning. Within three days I had dried up quite a bit and no longer became short of breath by the afternoon J
You might want to talk to your Dr., My problem was that the secretions were too thick and they would settle in my lungs. Good luck Joan
