Pityriasis - unifying name for several diseases of the skin, characterized by pityriasis desquamation.
Pityriasis versicolor (colored, or pityriasis, zoster) - malacanthidae disease caused by parasitic fungi. On the skin of the chest, back, sometimes on the scalp, there are small yellowish-brown spots, sharply distinguished from healthy skin. In the merger, they form a large spot with malmofestivalen edge. When pressed, they do not disappear, when poskablivanii their reveals peeling, loosened the surface of the corneal layer of the skin is removed in the form of "chips". When poorly expressed spots apply diagnostic iodine test": a small area of the skin in the affected area grease 2% iodine tincture, greatly loosened stratum corneum abundantly absorbs iodine and stains sharply darken, standing out against the background of healthy skin (iodine tincture can be replaced by a solution of any aniline dye). In summer, if the skin of the patient formed the sun, spots lose due to loss of fungi brown in color and are white (see Pseudobacteremia). Skin lesion at this stage should be differentiated from vitiligo (see). Treatment: lubricate the affected skin parts 2% iodine tincture, 1% salicylic alcohol, rubbing 10% sulphuric ointment, skin treatment method Demianovich (see Scabies).
Pityriasis rosea (herpes pink Gibert) is a disease of the group of infectious eritem (the agent is not clear, possible viral), for the most part begins with the appearance of the skin of one large slightly scaly pink spots, round or oval form ("parent" spot). After a few days, sometimes with a small temperature increase and General malaise rash appears, consisting of a small pink spots, by poskablivanii their reveals peeling in the Central part. Later in the centre of the stain the skin becomes brownish color and wrinkled, reminding crumpled tissue paper, edge spots stores pink color, peeling, however, found only on the border between the Central part and the edge of the spot. Spots are not merged, not itch. The rash is 4-6 weeks and disappears. Relapses are not observed. Always remain free from rashes face, hands, feet. Herpes pink differentiate with atzematen, taxidermy (see). Treatment: inside - 10% solution of calcium chloride on 1 table. L. 3 times a day, Dimedrol 1 tab. 3 times a day; naruzhno - indifferent shaken suspension (zinc "mess"). You should avoid the application of ointments, which, as a rule, worsen the disease.
Pityriasis rubra pilaris (red hair otrubevidnyi zoster, Diverge) is a relatively rare non-communicable disease of unknown etiology. Main primary element of a skin rash is shallow with a pinhead, follicular papules a pyramid shape, with a sharp top, covered with scale; the scale can be found on a separate papules thinned or broken vellus hair. The rash is localized primarily on the extensor surfaces of the limbs and trunk. In places where papules that form a plaque, leather, if you hold her hand, gives the impression of a grater. The most characteristic symptom of helping to establish the correct diagnosis,single spaced or grouped follicular papules on the rear of the first phalanxes of fingers. In severe cases, the disease may take on the form of eritrodermii: the whole surface of the skin red and otrubevidne flakes; sharp peeling (melkovodnoe, powdery) on the scalp. Facial skin sharply hyperemic, bright red, strained and stretched; on the skin of the palms strongly pronounced, hyperkeratosis, the nail on the fingers of hands and feet thickened, lose glitter, breaking. The patient suffers from fever and stress state of the skin. Treatment: long appointment of the interior of concentrate of vitamin a 15 drops 3 times a day; a warm bath with starch (400 g of starch in the bath), bath with bran (250-300 grams of bran boil for 30 minutes in a water small amount, the broth is poured into the bath); geraumige skin creams and ointments.
Pityriasis simplex faciei (simple herpes persons). On the face, usually in children and adolescents, there are spots rounded, whitish color, clearly stands out from normal, particularly tanned skin. If the stain shave detected melkovodnoe, powdery peeling, sometimes slight reddening of the skin. Spots occur, apparently, on the ground previously transferred impetigo (see), or are a kind of isolated its shape. Treatment - 2% white mercury, 2% tetracycline, boric-naphtalanna ointment.
Pityriasis simplex capitis (synonym dandruff) - infectious, apparently, a disease occurring chronically expressed in mellotronmetal.com the entire surface peeling of the skin of the scalp in the absence of any clear-cut boundaries of defeat. People with seborrhea (see), dandruff flakes become fat. Assume that in causing the disease plays the role of non-observance of sanitary rules in hairdressing. Treatment: the rubbing of the skin of the scalp sulfur, salicylic acid or sulphur-resorcinol ointment.
Prevention of dandruff: do not use other people's hats, combs; supervision over the sanitary condition of hairdressing.