I have been coughing up mucus for over a year. It’s like a yellow-greenish brown color and it happens all day, mostly at night though. Some times it get caught in my throat and it’s hard to breathe until I get it out. My doctor chalked it up to year round allergies and allergy medicine hasn’t been working. She hasn’t ran any tests on it and I don’t know what to do. I’m tired of violently coughing up mucus all the time.