Fire cider is a potent immune-booster that can also aid digestion, keep colds and flus at bay, boost circulation, and relieve seasonal allergies and sinus infections. It can also help to break up mucus, clear congestion, and warm you up on a cold day. Fire Cider gives a natural boost to your microbiome as well by providing a healthy dose of beneficial bacteria. Not sold yet? Some say it can even lessen hangover symptoms.