Chicken pox (also called varicella) is a classically childhood skin disease that is caused by the varicella zoster virus, the same virus that causes shingles in adults.
Cellulitis is an infection of the deeper subcutaneous layers of the skin with a classic set of signs and symptoms including redness, pain, and warmth, and swelling. (The picture of cellulitis affecting a person’s left leg above shows the redness and swelling, as well as evidence of a bandaged wound on the great toe.)
Cutanea larva migrans is skin condition caused by infection with a parasitic worm.
Becker’s nevus is an uncommon (but not rare) benign skin lesion. “Nevus” is another word for a mole and as such this growth appears as a very large and irregularly shaped mole. Which can be present at birth but most appear in puberty.
Cowden syndrome is a very rare genetic disease classically manifesting as the appearance of multiple hamartomas – a benign (but still problematic) kind of tumor – both on the skin and within internal organs.