The beneficial analgesic effects of Rubefacenciae (redden skin substances), is known since 1830 as a treatment for pain, cramps, and disorders of the musculoskeletal system. Herbal cataplasms containing rubefacient substances, such as Cayenne pepper, are commonly used as natural medications to treat painful or aching areas in the case of acute or chronic back pain, and rheumatisms. In Vienna and lower Austria, a Cayenne Pepper Cataplasm (CPC) application containing Cayenne pepper and Kaolin powder in mixed proportion, is commonly used to treat musculoskeletal conditions of pain especially of the low back.