When I first became int. in homeopathy{1976}I ,at first,studied the Schuesler{sic} cell salts . i managed a health food store at that time and carried the 12 "salts". A lady came in my store and told that she raised cats for cat shows and had a beautiful male ,but she could not show it because it had a rare form of feline acne that,according to all vets she showed it to said they could do nothing for it. She said many times it would begin to break out in pimples{pustular}but then these would be reabsorbed before completely suppurating. Suggested after we looked over symptoms of the salts, to try silica until suppuration fully ripened, followed by calc.sulph. to dry up same. She came back several months later and told me her cat no longer had acne,and she was now entering it in her shows. Fredric