Photoallergic and phototoxic eczema
Journal Title: Alergoprofil - Year 2009, Vol 5, Issue 2
Abstract
Photoallergic and phototoxic eczema (dermatitis) are classified as exogenous dermatoses, which mean that beside a specific environmental factor (a sensitizer), also the influence of irradiation (ultraviolet light in most cases) is necessary to evoke the symptoms. Therefore, the skin changes are most pronounced on uncovered sites. Numerous drugs may have photosensitising properties, including those intended for longterm therapy (analgesics, antidiabetics, circulation, and neurologic drugs, etc.). For people travelling to the tropics, photosensitising potential of widely-used prophylactic drugs (e.g. antimalarials, antibiotics) may pose a problem. Also, topical drugs and cosmetics, especially perfumes, may be responsible for the development of phototoxic and photoallergic eczema. Paradoxically, active ingredients of sunscreen cosmetics (UV filters) frequently cause photoallergy. The method for the identification of the responsible sensitizer is photopatch test – a modification of patch test, in which additional irradiation of the patch tested skin is done with a minute doses, typically, 5 J/cm2 UVA.
Authors and Affiliations
Radosław Śpiewak
Keywords
Related Articles
- EP ID EP139429
- DOI -
- Views 89
- Downloads 0
The hornbeam pollen allergens
Hornbeam pollen season in Poland usually starts between the middle of April till the middle of May depending on the region. Hornbeam pollen count reaches moderate levels. The author presents current state of knowledge re...
The analysis of total serum IgE, Phadiatop and fx5 testsin chronic rhinosinusitis patients with nasal polyps
The purpose of the study: 1. To compare levels of total serum IgE of chronic rhinosinusitis patients with nasal polyps and healthy volunteers. 2. To estimate percentage of nasal polyposis patients with positive Phadiatop...
Ash pollen in the air of selected Polish cities in 2009
This paper presents the course of ash pollination season in selected cites of Poland in 2009.The measurements were performed in Szczecin, Poznań, Wrocław, Sosnowiec, Kraków, Lublin, Łódź, Warszawa, Bydgoszcz and Białysto...
The analysis of yew /juniper pollen count in selected Polish cities in 2007
This paper presents the course of yew/juniper pollination season in selected cities of Poland in 2007. The measurements were performed in Bialystok, Bydgoszcz, Lublin, Sosnowiec, Szczecin, Warsaw and Wroclaw. Volumetric...
Hypertonic sea-water solution treatment of rhinosinusitis
Day-to-day ENT practice offers evidence of beneficial effects of nasal douching with sea water solutions. Products which cleanse nasal mucosa are now used as an adjunct to treatment of rhinitis and rhinosinusitis. The...