Isatis is used to treat upper airway infections, scaly itchy skin (psoriasis), diarrhea, and other conditions, but there is no good scientific evidence to support most of these uses. In manufacturing, isatis is used to make indigo dye.

What is isatis good for?

Isatis is used to treat the common cold and other infections of the nose, throat, and sinuses (upper respiratory tract infections), as well as infections of the glands that make saliva (parotitis).

What is Ban-Lan-Gen used for?

Ban-Lan-Gen (BLG) is a traditional Chinese herbal medicine. It has been used for the prevention and treatment of virus-related respiratory diseases such as influenza virus infection.