[Skin and mucous membrane reactions during and after radiotherapy].

The temporary acute reactions during radiotherapy are a burden for the patient. These reactions are due to a depletion of stem cells and depend on the single dose, the total dose and the irradiated volume. The WHO describes the acute changes in a graded scale from 0 to IV. A knowledge of the course of these events helps the otolaryngologist to inform patients competently, calm their fears and give support during treatment. Efficacious measures to alleviate symptoms are presented.