Physical

DERMATITIS Dermatitis - contact the lesion of a skin resulting immediate influence on it of obligate or facultative irritating factors of the chemical, physical or biological nature.
Distinguish simple and allergic dermatitises. Dermatitises simple arise in reply to influence of an obligate stimulus (obligatory for all people) - chemical (the concentrated acids, alkalis), physical (high and low glucosamine sulfate 1 bottle temperature, radial, mechanical influences, a current, etc.) and the biological nature. Inflammatory reaction arises in an influence place, strictly corresponding to borders of influence of a stimulus.
Degree of expression of the inflammatory phenomena thus depends on force of a stimulus, time of influence and to a certain extent from properties of a skin of this or that localisation. Allocate 3 stages of a simple dermatitis: erythematic, vszikulo-bulleznuju and necrotic. More often simple dermatitises are shown in a life by a combustion, a freezing injury, a skin attrition at wearing of badly driven footwear. At long influence of a stimulus of small force there can be a congestive erythema, infiltration and a skin ecdysis.
The simple dermatitis develops without an incubation interval and usually proceeds without disturbance of the general condition of an organism.
The exception is represented by combustions and freezing injuries of the big area and depth. In treatment of a simple dermatitis use local agents more often. It is important to eliminate a stimulus. At corrosive burns from the concentrated acids and alkalis an acute management agent is plentiful washout by their water. At the expressed erythema with an edema lotions (2 % Acidum boricum solution, lead water, etc.) and corticosteroid ointments (Synalarum, Ftorokortum, are shown, etc.), at vezikulo-bulleznoj stages make a covering of bubbles with conservation of their tyre cover and its disinfectant liquids ( a blue, a methylrosanilinum chloride, etc.) and applying and disinfectant ointments (2-5 % , with Garamycinum, etc.). Treatment of patients with necrotic changes of a skin spend in maxalt 4 pills a hospital.
The allergic dermatitis arises in reply to contact influence on a skin of a facultative stimulus, to which organism and in relation to which the stimulus is allergen (a monovalency sensibilization). Aetiology and pathogenesis. ECZEMA Eczema - frequent chronic relapsing disease of a skin of the allergic genesis, characterised by a polyvalent sensibilization and a polymorphic pruritic eruption (vesicles, an erythema, papules).
Aetiology and pathogenesis. An eczema - disease with a polyvalent sensibilization in which development play a role as exogenous (chemical substances, medicinal, alimentary and bacteriemic allergens), and endogenous (antigenic determinants of microorganisms from the centres of a chronic infection, intermediate products of an exchange) factors. The leading part in an eczema pathogenesis belongs to an immune inflammation in a skin, developing against suppression of cellular and humoral immunity, nonspecific resistance of a hereditary genesis.
At patients high frequency of antigens L-22 and HL-1 is noted. Functional disturbances and with prevalence of parasympathetic influences, neuroendocrinal disturbances, changes of functional activity of a digestive tube, metabolic processes, trophicities of tissues are characteristic also. The great value in development of a true eczema is given to the reflex influences which are starting with , internal organs and a skin, and in development of microbic and professional eczemas - sensibilizations accordingly to microorganisms or chemical substances.
Eczema exacerbations arise under the influence of psychoemotional stresses, disturbances of a diet, contacts to chemical substances and other allergens. process is shown by a serous inflammation of mainly papillary layer of a derma and the centres a order cialis 20mg now spongiosa a false skin layer.
In a derma perivascular lymphocytic infiltrates and an edema are observed. In a chronic stage the acanthosis and expressed an infiltrate in a papillary layer of a derma prevails. Allocate following basic forms of an eczema: true, microbic, seborrheal, professional, children's. Clinical picture The true eczema usually begins acutely at any age, proceeds with frequent relapses and, as a rule, passes in a chronic stage with periodic exacerbations.