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 

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All herbs are organic. Mentioned details are standards as well as per available sources and research,  Use according to physician advice