Breath and Body Odor TCM Herbal remedy

There is a TCM candy for odor control.  It is made from herbal extracts: Patchouli, Lilac, nutmeg and Angelica Dahurica.

I think it tastes good.  The candy, itself, smells good.  It certainly makes a nice and unique breath mint.

I've heard that Patchouli is commonly used for odor control: is Patchouli also effective if you eat it?