12 Indian Herbs That Boost Immunity Better Than Supplements

9. Kalmegh (Andrographis): The Fever-and-Respiratory Support

Kalmegh, also known as Andrographis, features a bitter principle called andrographolide and is used in Ayurveda and Siddha systems for respiratory and febrile conditions. Clinical research supports andrographis for reducing duration and severity of upper respiratory symptoms in some studies, making it a useful short-term herb when respiratory issues begin. At home, standardized andrographis capsules or controlled decoctions are typical forms; the bitter taste makes culinary use uncommon. Sourcing reputable, standardized extracts is important for predictable dosing. Safety considerations include avoiding kalmegh in pregnancy and using caution in people with liver conditions. When used judiciously and for short courses, kalmegh can be a useful adjunct for respiratory symptom relief alongside rest, fluids, and medical care when required.