"put some Mercurochrome on these cuts"
Creative Commons Attribution Share AlikeMercurochrome - Credit: Kevin Vreeland

Mercurochrome was a commercial name for an antiseptic known as Merbromin, which consisted of a disodium salt compound based on a mercury compound and a fluorescein used primarily as an identifying color agent. When applied to a wound, it would stain the skin a dark red color, which unfortunately made it more difficult for a person to detect inflammation. Removed from general availability by the U.S. Food and Drug Administration in 1998 for safety reasons because of its mercury content, it is still generally available in other countries.