Pleurisy that begins abruptly with high fever and pain during breathing. The discomfort is caused by two inflamed pleural layers rubbing against each other, producing a sound reminiscent of dry brown paper being rubbed together, audible via a stethoscope. The pain eventually subsides, ranging from hours to days, due to the release of fluid, known as pleural effusion. This fluid can be clear, pus-filled, or bloody. This condition can develop after a common cold, pneumonia, or the flu.