In Knoxville, spending time outside is part of everyday life, whether you’re tending to your yard, exploring local trails, or unwinding on the porch after a long day. But with all that fresh air comes one familiar annoyance: mosquito bites. Most are harmless and fade quickly, but sometimes a red, irritated spot can leave you wondering if it’s something more serious, like a skin infection. Knowing how to spot the difference can help ...