I feel you. I too cough up mucus everyday around noon and I dare not go out during that time fearing blood would come out with mucus.

In Dr. Metersky’s webinar he did say that coughing could potentially trigger hemoptysis, and because I am very prone to it, and have had the kind of massive hemoptysis that is life threatening, I try to guard very carefully against coughing. So far, I’ve been moderately successful skirting frequent bleeding through eating a liquid, soupy diet exclusively, and drinking a lot of warm water all day long with mineral drops in it to replenish those I may lose because of the quantity of water that I drink. This keeps secretions thin enough so that I can just spit them out without force, or else they just go through my system easily. Most of all, I find that I have had to stay extremely sensitive to when secretions are building, and in that case, postpone a meal and increase the warm water intake. It works most of the time.

At first, I had to calculate my protein intake carefully so that the soup diet would nourish me appropriately, but have gotten the hang of it slowly. I hope this is helpful.