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My Dr. Said I had one today. I have just recently had lung surgery and am in healing stage. Anyway, it is when the lung in inflamed and rubs against the chest wall when breathing. It makes a rubbing sort of sound, hence the reason they call it a rub. Usually there is a dull ache/pain where the rub is. It can be in one or more parts of the lung. I was given Prednisone to help get rid of the rub.

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16y ago

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