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Soaps

soap, skin and sulphur

SOAPS under soap we understand the combination of fatty acids with alkalies. There are sodium soaps (hard) and potassium soaps (soft). Soaps cause a softening of the epidermis, desquamation and removal of corneal masses, also a swelling and loosening of the epithelium. The object of their usc is that the medication may penetrate better into the skin after the removal of the corneal masses (especially in connection with baths). The application of soap is especially indicated for a skin abundant in fat which it is desired to remove. The effect may be increased if instead of simply washing with soap, the foam is kept on the skin, say over night, or even more by tying a bandage over the foam. In order to eliminate the irritation produced by the alkali upon the skin, attempts have been made to manufacture a neutral soap by over fattening, so that it should not contain either free alkali or glycerin. Unna and Eichhof who are de.serving of great credit for their efforts in

the direction of composing a medicinal soap, have introduced the follow ing soaps, the applications of which I would recommend: Sulphur resorcin salicylic soap (acne, eomedones), sulphur-tar soap (seborrhcea, chronic eczema), sulphur-naphtol soap (prurigo and parasitic eczema), sublimate soap (disinfection), balsam of Peru soap (scabies), and tar soap (in all chronic inflammatory diseases of the skin). Soaps made of natural spring salts are the Nenndorf soap (16 per cent. to 35 per cent. sulphur soap), the Aachen sulphur soap, the "Krankenheiler" potassium iodine soap and the Kreuznach iodine bromide soap, all of which can be recommended in inflammation of the sebaceous glands. Whenever soap is used on a child, especially the medicated soaps, great caution should be exercised, as the infant's skin is exceedingly sensitive to soap treatment.