Occlusal 26% w/w Cutaneous Solution Occlusal 26% w/w Cutaneous Solution treats & removes raised warts & verrucas. It contains a high level of salicylic acid which when used regularly removes the dead cells from the outer layer of the skin & steadily reduces the size of the wart. Occlusal 26% w/w Cutaneous Solution is easy to apply & dries quickly & there is no need to use plasters with it.