PHOTODERMATOSIS

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Under photodermatosis is meant a disease caused by increased sensitivity to sunlight and characterized by various eruptions. This disease is caused by ultraviolet rays (range 320-400 nm) and visible light rays (400-800 nm). There are exogenous and endogenous forms of photodermatosis.
With photodermatoses, phototoxic and photoallergic reactions are observed.
A typical phototoxic reaction is photodermatitis (Dermatitis solaris), accompanied by upbringing of erythema, edema and vesicles, meadow dermatitis (Dermatitis bullosa pratensis) and Photodermatitis pigmentaria.
With meadow dermatitis due to contact with field plants containing furocumarin and simultaneous irradiation with ultraviolet rays, vesicles and pustules are formed in combination with prolonged pigmentation. Photodermatitis pigmentaria begins because of the use of cosmetics containing phototoxic substances, for example, bergamot oil, and is accompanied by pronounced hyperpigmentation.
Photoallergic reactions are immunological processes, "antigen-antibody" reactions (type 4). Clinical symptoms are polymorphic. As if the situation, affected areas of skin caught in the sun, with the education of papules, vesicles, redness. Photographic substances include disinfectants, diabetic drugs, diuretics and sulfonamides.
Endogenous photodermatoses include porphyria, pigment xeroderma, Hydroa vacciniformia, Akne aestivalis, polymorphic photodermatosis.
In the anamnesis it is necessary to distinguish between photographic and phototoxic photodermatosis and to determine the substances that contribute to its appearance.
Already existing skin changes can be treated with external preparations containing steroids, but it seems like a short-term oral glucocorticoid therapy. In addition, with yellow-brown skin pigmentation, carotenoid therapy is indicated.
For biological therapy of photodermatosis, preparations Graphites-Homaccord , Psorinoheel, Galium-Heel, Lymphomyosot are shown .
In addition, you can use the means of protection from the sun.
In especially severe cases, it is possible to prescribe prophylactic pigmentation or photochemotherapy (PUVA), preferably 4-6 weeks up to an increase in solar activity.
In addition, patients should be advised to remove strong sunlight.