Can pregnant women with diabetes drink Isatis root (Ban Lan Gen) when they have a cold?

Pregnant women with diabetes who catch a cold may drink Banlangen (Isatis root decoction), which is primarily used to treat bacterial and viral infections. Although Banlangen contains sugar and may elevate blood glucose levels, short-term use is generally not a major concern. However, blood glucose levels should be closely monitored after taking Banlangen, and antidiabetic medications must still be taken regularly as prescribed. If Banlangen proves ineffective, the patient should seek evaluation at a reputable local hospital.