The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
The top herbs in Er Miao San are Phellodendron Bark (Huang Bo) and Black Atractylodes Rhizomes (Cang Zhu)
Source date: 1481 AD
Number of ingredients: 2 herbs
Key actions: Expels Dampness from the Lower Burner. Drains Heat from the Lower Burner.
Because it is a formula often recommended to treat the pattern 'Damp-Heat in the Lower Burner' of which spasm of the gastrocnemius muscle is a symptom.
Scanty and yellow urine Lower back pain Weakness of the lower extremities Red and swollen feet Sores on the lower extremities