Why is it so hard to get rid of a cough when chest congestion is involved. Every time I have a cold the cough is always the symptom that lasts the longest. It would probably be easier to deal with if I didn't have hypertension. I am very sensitive to stimulants. Last time I took a deco gestant it felt like I was in front of a radiator. Any ideas on how i can rid myself of this terrible cough and congestion without use of decongestants?