what formulars best for treating rashes of hep c

Are you asking as a practitioner or just generally? If a practitioner, first a practitioner of what exactly? and then, what is the patients diagnosis in TCM terms, what other issues do they have, what have you already tried and to what effect and over what timeframe.

If asking generally, you need to consult with a practitioner locally as this requires a more complex analysis in TCM terms - see “treating the cause vs. the symptoms” for more on that.