Dermatologists give us the low-down. Waking up with a spot on your lip is never a good feeling. Often cold sores or pimples are to blame, though telling the difference isn't always easy.

Understanding the Context

They can look ... USA Today: Best cold sore treatments and lip moisturizers for dry, cold weather Cold, dry weather can cause lip irritation, cracking, and cold sores. Blistex offers several over-the-counter products to treat cold sores and moisturize lips. Using antiviral creams at the first sign ...

Key Insights

InStyle on MSN: Cold Sore vs. Lip Pimple and How to Tell the Difference