The document describes and provides images of various common skin conditions including calluses, corns, psoriasis, chicken pox, Lyme disease, roseola, scarlet fever, shingles, sunburn, moles, acne, athlete's foot, birthmarks, boils, ingrown hairs, eczema, herpes, keloids, ulcers, warts, plantar warts, and frostbite. Links and images are provided for each condition described.