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 When the flu (influenza) leads to Pneumonia

Battling the flu can tax your immune system and increase the chances that you'll develop pneumonia. To help prevent other infectious organisms from gaining a foothold in the lungs, drink lots of liquids. Avoid taking antihistamines, which can dry and thicken secretions in the respiratory tract. Also, try to avoid smoking and drinking excessive alcohol, which can interfere with the body's natural mechanisms that flush out invading organisms. Taking these simple precautions can help you recover from the flu and help prevent pneumonia and other illness. - American Lung Association