Did you know your skin is the largest organ in your body? It protects you from the elements and keeps infection out - but time takes its toll. Most skin problems aren't life-threatening, but it's important to know when to get checked out.

Always see your doctor about a new or changing mole, or scabs or ulcers that don't heal - especially on the head and neck. Ringworm causes circular red or silver itchy patches. It's a fungal infection, not a worm - see your doctor for a cream.