Would dandelion root tea work as well? That’s really easy to find at the stores.
Dandelion root tea is good for liver and all liver related symptoms, that’s all I know. I can look in my herb books, but I’m sure I won’t find any references to the spike protein stuff. The leaves have different type of therapeutic action. Find a nice overgrown yard that hasn’t had chemicals on it and ask to pick their dandelion leaves? Get dandelions someplace and plant in your yard?