When spring settles into Knoxville, the Dogwoods bloom, patios fill up, and pollen seems to coat everything in sight. Along with the warmer weather often comes congestion, sinus pressure, and that frustrating “foggy” feeling that makes it hard to concentrate. But here’s the challenge: seasonal allergies and sinus infections can start off feeling almost identical. Knowing which one you’re dealing with can make all the difference in how quickly you feel better. If ...