I have coughing problems with almost three months now.  It comes with yellow mucus, very irritating when meeting with lots of people.  I have shoulder pain for almost two weeks now.I took panadol (Back pain relief panadol) and coughing and pain just go and always come back.
Thanks for your question on Chat Doctor. I can understand your situation and problem. In my opinion you should consult pulmonologist and get done1. Clinical examination of respiratory system. 2. Chest x-ray. 3. PUT (pulmonary function test). You are having chronic cough with expectorant. This is seen in lung infection and bronchitis. So get done chest x-ray to rule out lung infection. PFT is needed to rule out bronchitis. So better to first diagnose yourself and then start appropriate treatment. Don't worry, you will be alright.