🤒 Cold Sores: What You Need to Know About Causes, Contagion, and Care
You wake up with a tingling feeling on your lip. A slight itch. Then a small blister appears. By tomorrow, it’s swollen, red, and unmistakable: 👉 A cold sore — also known as a fever blister — has arrived. You’re not alone. Over half of adults in the U.S. have been infected with herpes simplex ... Read more