Spring in Chattanooga means sunshine along the Tennessee River, blooming trees across Northshore, and a visible layer of pollen settling on cars and sidewalks. As outdoor plans pick back up, many people also notice congestion, sinus pressure, and that frustrating “foggy” feeling that makes it hard to focus. The challenge? Seasonal allergies and sinus infections often start with nearly identical symptoms. Knowing which one you’re dealing with can make a big difference in how ...