Dry Hacking Cough
Coughing is usually a symptom of some disease or ailment, and it is not a disease in itself. The body responds to the presence of some waste material present in the air passageways by inducing a cough to push out the irritants out of the system. The heaviness of a cough often helps a doctor to determine the exact cause behind it and suggest some suitable medication for the condition. Similarly, even a dry hacking cough is the symptom of a disease that has primarily affected the lungs, or the airways in the body.
Coughing can be Classified Into 2 Categories: Productive and Dry (Unproductive)
A productive cough results in the discharge of sputum or mucus, whereas the latter is simply an irritation in the lungs caused by some other reasons. A dry hacking cough is most commonly seen towards the later stages of a common cold, and can also be caused by some external irritants like smoke or dust.
Bacterial Lung Infection.
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This infection is caused by Methicillin-resistant Staphylococcus Aureus (MRSA) -- a strain of Staphylococcus bacteria that is resistant to most antibiotics. It is very common in patients, who are hospitalized. The most commonly observed symptom of bacterial lung infection is inflammation. In the affected region, the local cells release histamine, which gives rise to inflammation. This can further cause production of mucus, increase in the flow of blood, and swelling, too. Irritation of the skin is also one of the symptoms of bacterial lung infection.
With postinflammatory pulmonary fibrosis, the sensitive tissues in the lungs scar or thicken due to fibrosis. With such increase in thickness, the muscles become taut and rigid. This reduces the lungs ability to expand and contract, and hence difficulty in breathing. There is no exact cause for such fibrosis. Usually this condition occurs, after some disease and infection has attacked the lungs. While there are at least a hundred lung diseases and various causes, that result in such growth, here are some common ones:Workers in mines of coal and precious metals, ship workers and sand blasters, are at a higher risk of lung diseases and hence fibrosis, due to the nature of their work. Smokers, especially over 40 years old individuals, are at a risk. Research in this field has shown the chance of a genetic disposition with this condition.