A wound treatment composition is provided preferably comprising (a) sodium meta-silicate, (b) sodium carbonate, (c) sodium gluconate, (d) potassium aluminum sulfate, and optionally (e) sodium chloride, which composition is especially suitable as a rinsing or soaking agent for cleaning and decontaminating surfaces of a wound, for removing biofilms from wound and other body surfaces, for dissolving incrustations or scabs from body surfaces and as a dissolving agent for dressings. The composition has a beneficial and synergistic effect on the traditional treatment of wounds with antibiotics or oxidizing agents in that it makes the latter treatment more effective.