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 Hua Chong Wan are Carpesium Fruits (He Shi), Areca Nuts (Bing Lang) and Chinaberry Root Barks (Ku Lian Pi)
Source date: 1148 AD
Number of ingredients: 5 herbs
Key actions: Kills intestinal parasites.
Hua Chong Wan has sometimes been used by TCM professionals to alleviate the symptoms of pinworms
Read more about Hua Chong Wan here