Patterns Addressed
In TCM, symptoms don't appear randomly — they cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Shi Hui San is designed to correct these specific patterns.
Why Shi Hui San addresses this pattern
Blood Heat (血热) is the core pattern this formula addresses. When intense Heat invades the Blood level, it agitates the Blood and damages the vessel walls, causing Blood to escape its normal pathways (called 'reckless movement of Blood due to Heat', 血热妄行). In severe cases, the combination of blazing Fire and surging Qi drives Blood forcefully upward, resulting in acute hemorrhage from the upper body: vomiting blood, coughing blood, or nosebleeds.
Shi Hui San directly targets this pattern by deploying ten Blood-cooling and hemostatic herbs. The King herbs (Da Ji and Xiao Ji) cool the Blood level to remove the Heat destabilizing the vessels. The Deputy herbs reinforce this cooling and add astringency to physically contain the bleeding. The Assistants Zhi Zi and Da Huang drain Fire and redirect it downward, cutting off the driving force behind the upward hemorrhage. Mu Dan Pi prevents Blood stasis from forming as the bleeding stops. The charring of all herbs further strengthens the astringent hemostatic action.
A practitioner would look for one or more of these signs
Vomiting blood, bright red
Coughing or spitting up blood
Nosebleeds with bright red blood
Red tongue, yellow coating
Rapid or wiry-rapid pulse
Restlessness and irritability
Thirst with desire for cold drinks
Constipation with dark urine
Why Shi Hui San addresses this pattern
When Liver Fire blazes upward, it can invade the Stomach and Lung, scorching the Blood vessels in the upper body and causing acute hemorrhage. The Liver's ascending nature means that when its Fire becomes excessive, it drives both Qi and Blood forcefully upward, manifesting as vomiting blood or nosebleeds that are sudden and forceful in onset.
Shi Hui San addresses this through Zhi Zi, which specifically clears Liver and Gallbladder Fire, and Da Huang, which powerfully redirects ascending Heat downward. The multiple Blood-cooling herbs (Da Ji, Xiao Ji, Qian Cao Gen, Ce Bai Ye) cool the Blood that the Liver Fire has agitated. Mu Dan Pi, which enters the Liver channel, cools Liver-level Blood Heat while dispersing any stasis caused by the Fire damaging the vessels.
A practitioner would look for one or more of these signs
Sudden forceful vomiting of bright red blood
Profuse nosebleed
Red face and eyes
Irritability, anger
Bitter taste in the mouth
Commonly Prescribed For
These conditions can arise from the patterns above. A practitioner would consider Shi Hui San when these conditions are specifically caused by those patterns — not for all cases of these conditions.
TCM Interpretation
Coughing up blood is understood in TCM as Blood escaping from the Lung vessels. The Lung is a delicate organ ('tender organ', 娇脏) that is easily damaged by Heat. When Fire or Heat blazes in the Blood level, or when Liver Fire rises and scorches the Lung (a pattern called 'wood Fire tormenting metal'), the thin vessels of the Lung are damaged, and Blood escapes upward through coughing. The key diagnostic features are bright red blood, a sense of heat in the chest, a red tongue, and a rapid pulse. In conditions like bronchiectasis and pulmonary tuberculosis, chronic Heat can damage these Lung vessels repeatedly.
Why Shi Hui San Helps
Shi Hui San addresses hemoptysis by cooling the Blood that the Heat has destabilized (Da Ji, Xiao Ji, Ce Bai Ye, Bai Mao Gen) while simultaneously clearing the Fire that is damaging the Lung vessels (Zhi Zi clears Heat from the upper body; Da Huang redirects Fire downward and away from the Lungs). The charred form of all ten herbs enhances their astringent capacity, helping to physically seal the damaged vessels. He Ye and Ce Bai Ye have particular affinity for the Lung. Mu Dan Pi ensures that while the bleeding stops, Blood stasis does not accumulate in the Lung. This formula was originally designed specifically for coughing up blood in the context of consumptive Lung disease (痨瘵), making hemoptysis one of its primary classical indications.
TCM Interpretation
Vomiting blood reflects a disruption in the Stomach where Heat has damaged the Blood vessels of the digestive tract. The Stomach's normal Qi direction is downward, but when intense Fire or Heat (either from the Stomach itself or from Liver Fire invading the Stomach) agitates the Blood, it reverses the Stomach's downward flow and forces blood upward and out through the mouth. This manifests as the sudden vomiting of bright red or dark red blood, often accompanied by a burning sensation in the stomach, thirst, and constipation.
Why Shi Hui San Helps
Da Huang is particularly important here: it clears Stomach-level Heat while strongly directing Qi downward through the bowels, restoring the Stomach's natural descending function and helping remove both Heat and stagnant blood. Zhi Zi drains Fire from the Liver and Stomach. The Blood-cooling herbs (Da Ji, Xiao Ji, Qian Cao Gen, Bai Mao Gen) cool the Blood in the Stomach vessels. Zong Lu Pi provides strong astringency to contain the hemorrhage. The classical instruction to take the formula with radish juice is specifically relevant to this pattern, as radish juice descends Qi and clears Stomach Heat.
Also commonly used for
Acute nosebleed due to Lung-Stomach Heat or Liver Fire
Dysfunctional uterine bleeding with Blood Heat signs
Blood in urine due to Heat in the Blood
Bleeding peptic ulcer with Blood Heat pattern
When presenting with Blood Heat pattern
What This Formula Does
Every TCM formula has a specific set of actions — here's what Shi Hui San does in the body, explained in both everyday and TCM terms
Therapeutic focus
In practical terms, Shi Hui San is primarily used to support these areas of health:
TCM Actions
In TCM terminology, these are the specific therapeutic actions that Shi Hui San performs to restore balance in the body:
How It Addresses the Root Cause
TCM doesn't just suppress symptoms — it aims to resolve the underlying imbalance. Here's how Shi Hui San works at the root level.
Shi Hui San addresses a pattern of Blood-Heat with reckless movement of Blood (血热妄行, xuè rè wàng xíng), specifically in the upper body. The underlying disease logic works as follows:
When intense Heat or Fire builds up inside the body, particularly in the Liver and Stomach systems, it can surge upward with great force. This ascending Qi-Fire scorches the blood vessels in the upper body (lungs, throat, stomach, nasal passages), damaging them and forcing Blood out of its normal pathways. The result is sudden, forceful bleeding from the upper body: vomiting blood, coughing blood, spitting blood, or nosebleeds. The blood is characteristically bright red and arrives in a rush, reflecting the intense Heat driving it. Accompanying signs include a flushed face, red lips, irritability, thirst, dark urine, constipation, a red tongue, and a rapid pulse, all markers of vigorous internal Heat.
Because the root problem is Fire pushing Blood upward and outward, effective treatment must simultaneously cool the Blood (to remove the Heat that is damaging vessels), stop the bleeding itself (to prevent further blood loss), direct the Fire downward (to reverse the upward surging momentum), and prevent leftover Blood stasis (since blood that has left its vessels can stagnate and cause further problems). Shi Hui San was designed specifically for this emergency scenario, acting as an acute first-response treatment to halt the bleeding while the underlying cause is subsequently addressed with other formulas.
Formula Properties
Every formula has an inherent temperature, taste, and affinity for specific organs — these properties determine how it interacts with the body
Overall Temperature
Taste Profile
Predominantly bitter and sweet with mild astringency. Bitter to clear Heat and direct Fire downward, sweet to cool Blood gently, astringent (from the charring process and Zong Lu Pi) to contain and stop bleeding.
