Wound and mucous membrane on the basis of bispyridiniumalkanes

The invention relates to an antimicrobial composition comprising a) from 0.001 to 1 wt .-% bispyridiniumalkane, b) and humectant c) comprises water. The composition has an osmolality from 230 to 350 mOsmol / kg and is free of surfactant. It is used as wound and mucosa.