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Pests and Diseases of the hair and scalp

Impetigo caused by streptococci. Blisters and dry to form a yellow crust on the outer epidermis of the skin. The bacteria enters through a cut or abrasion. It is highly contagious, especially to children.
Boils caused by staphylococci. Infects the follicle to produce inflammation and pus in follicle.
Barbers' itch (sycosis barbae) caused by staphylococci. Infects follicles of beard. Pustules from around each hair. It is transmitted by the use of infected shaving equipment.
Cold sores (Herpes simplex). Infects skin around nose and lips, forms red itchy patches which may develop blisters. This tends to be a life long condition which comes and goes.
Warts (verrucae). Small growths, which cannot be cured but can be burnt off.
Head louse (pediculosis capitis). Can be found on scalp at the nape or sides of the head. The louse is 2 mm long and causes irritation by biting the skin and sucking blood.Females lay eggs (nits) close to the scalp attached to a hair shaft. Pediculosis is treated by an insecticide.
Itch mite (sarcoptes scabiei). This mite causes `scabies'. Usually infects hands and wrists but can spread over the whole body. infection is spread by direct contact. medical advice is necessary.
Face mite (demodex folliculorum). This mite feeds on sebum and is associated with blackheads and hair follicles. It inhabits the eye-lashes, nose and chin. They are harmless and do not transmit disease.
Alopecia This term covers the loss of hair. The most common type of alopecia is found in men and is usually hereditary.
Ringworm Fungus attacks dead tissues of the epidermis and hair shaft.
Tinea capitis (scalp). Pink patches, develop into round grey scaly areas, with broken hairs. It is highly contagious, spreads by direct contact, and is most common in children. Treatment by Griseofulvin.
Alopecia areota Patches of clear scalp of various sizes. normally caused by shock or nervous conditions. treat with antibiotics and high- frequency treatment.
Seborrhoea A greasy condition of the scalp. A good diet will help with this condition.
Seborroe oteosa Extreme oiliness caused by over active sebacious glands. It is not infectious but is often related to other scalp conditions.

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