Banlangen Granules, clearing heat and removing toxins, cooling blood and relieving pharynx. It is used for sore throat and dry mouth and throat caused by heat in the lungs and stomach; acute tonsillitis is seen in the above symptoms.

So, the root is mainly used as an adjunctive treatment for colds accompanied by sore throat, dryness of the mouth and throat, and acute tonsillitis. You can't blindly use the root to prevent colds, and it's also inappropriate to use the root to treat colds without recognizing the symptoms and treatments.

The above insights are for reference only, please consult your doctor or relevant professionals for specific treatment and purchase