I recommend a simple brew - cut the stems into thin slices like cucumber and boil them up (preferably over a wood fire outdoors  ). Where possible, add herbs from your garden if you understand how to use them. Remove the slices after several hours and simmer down to a manageable volume. You may find a scum forms on the surface at times during the process - skim this off, but retain any accompanying liquid. Smudge with good incense throughout the process.

Add lemon balm to calm the stomach, strain and sip slowly while warm, trying your best to pretend it's vegetable soup :?