How long does a small amount of pleural effusion take to absorb?

A small amount of pleural effusion can generally be absorbed by itself, do not worry too much, but should be regularly reviewed in the hospital; if the patient has too much pleural effusion, accompanied by chest distress, respiratory disorders and other symptoms, closed pleural drainage should be performed for treatment, and antibiotics should also be taken to prevent infection effectively. The diet should also be light.