Si Miao Wan. 四妙丸 ( Tea Pills )

An Ancient TCM Formula Clears Heat and Removes Dampness
DampClear is an herbal traditional Chinese medicine (TCM) remedy. Chinese medicine doctors have historically dispensed this formula (known as Si Miao Wan ) Four Marvel Tea Pill to regulate blood flow in the lower extremities; metabolize fluids; and support normal joint function.
Although Damp-Heat theory dates back several centuries, it applies more than ever to modern lifestyles. One major reason Damp-Heat develops is diet. Too much sugar, greasy and fatty foods (and sometimes spicy food, depending on your constitution) can lead to internal Damp-Heat.
When Damp-Heat accumulates in the body, according to TCM theory, it particularly affects the sensitive, hollow spaces, i.e. the joints. That's because Damp-Heat impedes the flow of Qi. Think about when you're on a cross-country or international flight. Your joints get stiff and discomforting from sitting for so long. Your circulation and life energy force--Qi--is impeded. (Just as you feel stiff in the lower body from flying, Damp-Heat first affects the lower extremities.) The result of this can manifest as redness around the feet, ankles or knees.
Dampness obstructs harmonious Qi flow and causes stiff joints and heavy limbs. As for Heat, it dries up the fluids and injures Yin. When fluids dry, it causes a vicious cycle, leading to more Dampness.