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Skin protection has a particular importance in occupational dermatology. The skin has to be protected from different occupational noxae for example physical like heat, cold, UV-radiation or friction or chemical like toxic or allergenic contactants. The protection measures are specified, in detail new formation of workrooms to prevent irritation of the skin, protective clothes and gloves, different noxa-adapted, skin protective preparations including different detergents and care of the skin. Their valence concerning prophylaxis and present occupational eccema is discussed.

A 38-year-old male homosexual patient, who had suffered from hepatopathy for many years and from rosacea since 15 years, showed pronounced exacerbation of the rosacea following HIV infection.

At the Davos Clinic for Dermatology and Allergy (Alexanderhausklinik), patients suffering from psoriasis were treated with natural UV irradiation over 6 weeks in 1987: the average doses applied amounted to 1.042 J/cm2 UVB (= 41.7 sunburn units (SU] and 41.511 J/cm2 UVA. These doses were far below those of artificial UV sources usually required in the treatment of psoriasis. The doses were also far below those which statistically increase the incidence of non-melanotic skin cancer.