This chapter explores dermatology. It includes history and examination, creams and ointments, describing a lesion, patterns of skin disease, itch, skin signs in systemic disease, common skin cancers, malignant melanoma, moles, psoriasis, eczema (dermatitis), skin infections (fungi, bacteria, viruses), acne vulgaris, rosacea, drug eruptions, specific skin disorders (pemphigus and pemphigoid, strawberry naevus, pyogenic granuloma, lichen planus, pityriasis rosea, alopecia, photosensitivity, urticaria), venous ulcers, pressure sores, skin disorders and HIV, infestations, and psychodermatoses.