Stuffed up again? Though it may sound counterintuitive, your nasal cavities likely need a bacterial boost. Just like your gut, sinuses need a hefty dose of “good bacteria” to ward off external invaders. This new iFlora blend from Sedona Labs combines four strains of probiotics and N-acetyl cysteine, a mucus-busting antioxidant, to get you breathing better. $34.95 for 90 capsules; sedonalabs.com
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