### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I am a 21 yr old male, I ve had asthma as a child and bretahing through my nose troubles as a child as well. I have been experiencing lots of mucous production , which when I cough up is sometimes very thick and foal smelling (dark in colour), but otherwise always froth-like. Sometimes I also cough up little hard chunks that feel like powder or cheesy inthe center that smell identicle to feces. Some insight would be helpful as past doctors have put me thru unsuccessful tests and diagnosis ssuch as post-nasal drip and just yesterday an upper GI barium test...because I mention slight difficulty swallowing. I am a nursing student and giving my symptoms, I am assuming something is causing irriation in my lungs, possibly re-occuring asthma symptoms , but I want to know if I should be worried about other problems such as COPD , pulmonary edema . etc. Thank you

### output:

Hello dear... Asthma is caused due to bronchoconstriction (obstruction of smaller airway passages) which is indicative of Hyper-responsiveness of air passages to an allergen. Nebulisation will provide symptomatic relief by causing bronchodilator (dilating the smaller airway passages, relieving the obstruction & increasing airflow to lungs)And the presence of foul smelling sputum indicate lower respiratory tract involvement such as Bronchiectasis (a condition grouped under COPD, in which there is irreversible dilatation of the air passages due to damage to bronchial wall)So...it will be better to consult a Pulmonologist. And make sure that you are well protected from cold, dust & other allergens. Other than that eat a healthy diet, avoid stress, get good sleep, think positive and stay happy. Wishing you good health. Thanks & take care.