"Medical Properties: When topically applied capsaicin, Perforated Heat Plaster helps the pain to be reduced by blocking the P matter which is a chemomediator that provides the pain to be transmitted to the central nervous system from the peripheral nervous system Recommended Use (Indications): Muscle and joint pain occurring in various parts of the body, the painful muscle strains, lumbago, sciatica, rheumatism used as an aid for the relief of pain."