1884 Campho-Phenique Liquid is introduced. 1944 Campho-Phenique Liquid is purchased by Sterling Drug. 1945 Campho-Phenique is repositioned as a first aid antiseptic. 1979 Campho-Phenique Gel is formulated as a first aid product. 1984 Campho-Phenique Gel is repositioned as a cold sore remedy. 2003 Campho-Phenique Cold Sore Treatment for Scab Relief is launched.