This critical safety warning signifies that the medication or product is intended strictly for topical application and must never be swallowed, injected, or applied to internal mucous membranes (such as inside the mouth, nose, or eyes). Products carrying this label—including antiseptic rubs, medicated creams, ointments, and liniments—often contain ingredients that are safe for the skin but can be toxic or highly irritating if they enter the bloodstream or digestive system. Always wash your hands after applying such products to avoid accidental contact with your eyes or mouth. If ingestion occurs, contact a poison control center immediately.