Peppermint

Herb actions

Bo He disperses Wind-Heat, cools and clears the head and eyes, and benefits the throat, addressing fever, cough, headache, red eyes, and a sore throat in the early stages of a Wind-Heat pattern. It vents rashes, helping early-stage eruptions surface rather than remaining trapped beneath the skin. Bo He relieves stagnation of Liver Qi, easing pressure or pain in the chest and flanks along with the emotional tightness that Liver Qi constraint produces. It is also used to expel turbid dampness that creates abdominal pain, vomiting, and diarrhea that come with heat-driven gastric disturbance.

Flavor and nature

Bo He's acrid flavor and cool nature define its role as one of the primary herbs for dispersing Wind-Heat from the exterior. Its aromatic quality moves alongside the acrid flavor, opening the pores and carrying heat outward through sweating instead of letting it press inward toward the interior.

Acridity moves the qi and relieves stagnation causing chest and flank distention and disruption to the menstrual cycle. Bo He's cool nature drains constrained heat instead of adding warmth to the system. Its aromatic quality also penetrates more deeply than a typical exterior-releasing herb, reaching Liver qi stagnation while still working superficially enough to vent early skin eruptions and clear Wind-Heat from the head and eyes. In smaller doses this same aromatic quality transforms turbid qi in the digestive system, breaking up the damp, heavy, obstructive quality of Summerheat.

How Daodi uses it

At Daodi we use Bo He as a light, fast-acting mover to address qi stagnation and emotional constraint, particularly for chest and flank tightness that occurs around the menstrual cycle. Due to its cool nature, Bo He is used when a formula's temperature action is cooling, rather than warming.

Herb pairings

• Chai Hu-Chai Hu courses Liver qi, and along with Bo He's lighter, more superficial dispersing action addresses chest and flank distention alongside emotional constraint.

• Bai Shao-Bai Shao nourishes Liver Blood and Yin so that Bo He's light, dispersing action can move Qi without depleting what the Liver depends on to stay soft.

• Dang Gui-Dang Gui nourishes and moves Blood, complementing Bo He's Qi-moving action when Liver Qi is coupled with an underlying Blood deficiency.

• Gan Cao-Gan Cao harmonizes the Middle and moderates Bo He's dispersing, cooling action, maintaining balance.