I have swelling and slight tenderness at the bridge of nose. Started about 4 days ago. No injury was inflected to the nose in recent time. This morning, swelling included a small pouch of swelling under right eye. No pain unless I physically massage area. Nasal passage appears free and open - no discharge, no trouble breathing. Doctor says its a skin infection (no discoloration, rash, bumps, etc on surface of skin - just swelling) and proscribed Cephalexin - 500mg 4 times daily for a week. Any thoughts? Do you agree? How does this type of infection start?