The invention relates to adermatological treatment device
suitable primarily for treating nail fungus, in particular toenail fungus. The use of a photochemically active substance
alloWs effective control of the fungus by irradiating With light
at a Wavelength that is relatively harmless to health. Potential
technical implementations are possible for setting up the irradiation
device, utilizing either a gas discharge lamp or LEDs
as the light source. A shoe-shaped optical shielding housing is
preferably used, being transparent in the long-Wavelength
portion of the visible spectrum, and absorptive in the short
Wavelength, therapeutic range of the spectrum.