Skin problems:
1. Mole: a pigmented spot, mark, or small permanent protuberance on the human body
2. Freckle: any of the small brownish spots in the skin due to augmented melanin production that increase in number and intensity on exposure to sunlight
3. Pimple: a small inflamed elevation of the skin
4. Acne: a disorder of the skin caused by inflammation of the skin glands and hair follicles
5. Pigmentation: abnormal colouring of a person's skin, typically resulting from disease
6. Blemish: a small mark or flaw which spoils the appearance of something
7. Rash: an area of redness and spots on a person's skin, appearing especially as a result of illness
8. Eczema: a medical condition in which patches of skin become rough and inflamed with blisters which cause itching and bleeding
9. Cyst: a growth filled with liquid that forms in or on your body
10. Black head: a small plug of darkened sebum and dead skin cells that fills a pore of the skin especially on the face
11. White head
: a pale or white-topped pustule on the skin