Guide through Carlsbad and its environs/The Sprudel-Soap
This soap is made from the alkaline salt of the water of the Sprudel, and contains some iodine and bromine; it is principally used in chronic diseases of the skin, and as a poultice, either pure or mixed with mud, for the so-called cold abscess. The price of one pound of soap is 1 fl. 20 kr.; the 1⁄4 lb. cake is sold at 35 kr.