Treatment of common warts & verrucae. Viscous Salicylic acid 17 %w/w Dosage: Adults & children over 6 years: gently rub hard skin from surface of wart with pumice stone or emery board. Apply to wart 1 drop at a time with dropper-rod until covered. Allow to dry. Repeat daily, with regular washing, for up to 12 weeks. Children under 6 years: not to be used.