Pineapple contains bromelain, an enzyme that can help reduce inflammation, especially in the nose and sinuses.
One study found that a pineapple's core and peel yielded the highest amount of bromelain in the fruit, at 40 percent by weight.
The skin and core of a pineapple straight-up would be tough on your digestive system, so try putting them through a powerful juicer.
There are also recipes for pineapple skin tea available online.
Photo Credit: iStock