1, the side effect of Prunella vulgaris is that long-term use of Prunella vulgaris will cause changes in renal function, and if renal function is damaged, it will cause edema on the face and eyelids, especially in the morning.

2. If this happens, you should stop taking the medicine immediately and go to the hospital for corresponding examination and treatment, so as not to cause more damage. Patients with spleen and stomach weakness or rheumatic diseases should not take it, otherwise there will even be some allergic reactions, facial edema, stomach discomfort, abdominal pain, nausea and vomiting.

3. Prunella vulgaris is bitter and cold, and its main functions are clearing away heat and purging fire, improving eyesight, dispersing stagnation and reducing swelling, etc. Modern research has proved that Prunella vulgaris has the function of lowering blood pressure and can be used for adjuvant treatment of mild hypertension.