Indigofera Tinctoria or wild indigo is herbal plant whiile indigo carmine is labe prepared dye in industrial purposes, People often cunfuse between two. Upper respiratory infections , diphteria, influenza, typhoid and malaria are treated by indigo, but more researh is needed to support these uses
Disclaimer
All herbs are organic. Mentioned details are standards as well as per available sources and research, Use according to physician advice