1 Qingre Jiedu Indigo has the effect of clearing away heat and toxic materials, and can be used for excessive pathogenic heat, fever, polydipsia, or spots. Especially suitable for heat entering the blood, see spots. Often used with gypsum, Radix Rehmanniae and Fructus Gardeniae.

2 Cooling blood and stopping bleeding Indigo Naturalis has the effect of cooling blood and stopping bleeding, and can be used for hematemesis and epistaxis caused by blood heat. It is often combined with heat-clearing and blood-cooling herbs such as Radix Rehmanniae, Cortex Moutan and Rhizoma Imperatae. Because it can clear liver fire and phlegm heat, it is often used for hemoptysis caused by liver fire invading lung, collateral injury, blood overflow or blood in phlegm. Effective alone, it is often combined with clam powder, that is, Ge Fen.

Ding Jing indigo naturalis can clear away heat and toxic materials, cool blood and soothe the nerves. Can be used for summer shock, wind shock and wind shock. For epilepsy due to summer heat, it is often combined with licorice and talc, such as Jasper powder. Children with convulsion and convulsion are usually treated with Uncaria and Niuhuang.

Anti-tumor indirubin has a good effect on chronic myeloid leukemia. The activity of synthetic indirubin on sarcoma and the curative effect on chronic myeloid leukemia are similar to those of natural products.