All Me's answer: Yes natural pineapple juice They can help reduce phlegm, making it easier to breathe. Pineapple reduces swelling, and All Me's answer: Yes natural pineapple juice They can help reduce phlegm, making it easier to breathe. Pineapple reduces swelling, and pineapple juice has been known to help reduce coughing. Additionally, pineapple contains the enzyme bromelin which helps the lungs remove debris and detox natura... ...read more