A composition for topical application comprises a base, and elemental silver as a colloidal suspension dispersed within the base, in an amount of from 1x10-5 to 1x10-2 by weight/volume. The composition also comprises from 0.1% to 10% by weight/volume a combination of Arctium lappa, Echinacea purpurea, Stellaria media, Matricaria recutita, Hypericum perforatum, and Calendula officinalis.