Please note that you should never self-prescribe TCM ingredients. A TCM ingredient is almost never eaten on its own but as part of a formula containing several ingredients that act together. Please consult a professional TCM practitioner, they will be best able to guide you.
Preparation: Wash the rhizome of the ginger, scrape the outer peel with a knife and dry it under the sun
Dosage: 2 - 6 grams
Main actions according to TCM*: Promotes urination and reduces edema at its early onset. Disperses the Exterior.
Source date: 1107 AD
Number of ingredients: 5 herbs
Formula key actions: Reduces edema, diuretic. Regulates and strengthens Spleen Qi.
Sheng Jiang Pi is a king ingredient in Wu Pi Yin. Like the name indicates, it means it has more power than other ingredients in the formula.
In Traditional Chinese Medicine (TCM), ginger peel are plants that belong to the 'Herbs that drain Dampness' category. These herbs are typically diuretics, meaning that they promotes the increased production of urine in order to remove Dampness that has accumulated in the body. According to TCM Dampness accumulates first in the lower limbs, causing edema and impaired movement. From there, if unchecked, it can move upward and impair digestion and eventually the respiratory system.
Furthermore ginger peel are plants that are Cool in nature. This means that ginger peel tend to help people who have too much 'Heat' in their body, although with less effect than a plant that would be Cold in nature. Balance between Yin and Yang is a key health concept in TCM. Those who have too much Heat in their body are said to either have a Yang Excess (because Yang is Hot in nature) or a Yin deficiency (Yin is Cold in Nature). Depending on your condition ginger peel can help restore a harmonious balance between Yin and Yang.
Ginger peel also taste Pungent. The so-called 'Five Phases' theory in Chinese Medicine states that the taste of TCM ingredients is a key determinant of their action in the body. Pungent ingredients like ginger peel tend to promote the circulations of Qi and Body Fluids. That's why for instance someone tends to sweat a lot when they eat spicy/pungent food.
The tastes of ingredients in TCM also determine what Organs and Meridians they target. As such ginger peel are thought to target the Spleen and the Lung. In TCM the Spleen assists with digestion, Blood coagulation and Fluids metabolism in the body. In addition to performing respiration, the Lungs are thought in TCM to be a key part of the production chain for Qi and the Body Fluids that nourish the body.