Everyone knows Sichuan pepper for its tingling sensation. 

That buzzing feeling on your lips. The bright citrus aroma. The strange moment when your mouth feels almost electric.

Most people know it from málà cooking. Hot pot. Mapo tofu. Kungpao chicken.

But for much of Chinese history, Sichuan pepper — or huā jiāo (花椒) as it’s known in Chinese — was more than a spice.

It also appears in Traditional Chinese Medicine (TCM), where it is described as a warm and pungent herb used both inside the body and on the skin.

During the Han dynasty, Sichuan pepper was even mixed into the mud walls of concubines’ rooms, called 椒房 (“pepper chambers”). The spice’s fragrance and clusters of seeds — said in folk tradition to resemble male anatomy — made it a symbol of fertility. 

Stories like this hint at how important Sichuan pepper once was in Chinese culture.

Before we continue, one important note.

The uses below come from traditional Chinese medicine and historical practice. They are part of cultural history and not modern medical advice or scientific claims.

For modern scientific research on Sichuan pepper’s potential health effects, see our article 7 Surprising Potential Health Benefits of Sichuan Pepper, Backed by Research.

Here are five traditional uses that appear often in Chinese herbal sources.

1. Warming the Digestive System

One of the most common descriptions of Sichuan pepper in Chinese medicine is:

“Warms the digestive system (middle) and relieves pain.” (温中止痛 - wēn zhōng zhǐ tòng)

This description appears in the Chinese Pharmacopoeia (中国药典), China’s official compendium of medicinal substances used in traditional Chinese medicine.

In TCM theory, some digestive problems are associated with internal cold, which weakens the body’s digestive “middle” — the stomach and spleen system responsible for processing food.

Sichuan pepper is considered warm and pungent, and in traditional Chinese medicine it belongs to a class of ingredients used to “warm the interior and expel cold.” Because of this it sometimes appeared in herbal formulas used to support digestion.

As Fuchsia Dunlop explains in Land of Plenty, Sichuan’s humid climate has traditionally been associated with “dampness” in Chinese medical thought, which heating ingredients such as chiles, ginger, and Sichuan pepper were believed to counteract.

This perspective may also help explain why spicy foods became central to cuisines in humid regions such as Sichuan.

2. Foot Soaks for Cold and Circulation

Sichuan pepper also appears in a more everyday form: the foot bath. Practiced nightly as a ritual before bed, it is to increase circulation and sleep quality.

In Chinese home remedies and folk practice, peppercorns are sometimes added to hot water foot soaks, especially when the goal is to warm the body and drive out cold.

This idea fits neatly with traditional Chinese medical thinking. In TCM, the feet are believed to contain important acupoints and meridian pathways connected to organs throughout the body. 

Image credit: Medical News Today — “What to Know About Foot Reflexology in Traditional Chinese Medicine.”

Warm herbal foot baths, in which the feet are soaked in herb-infused water, are traditionally used to improve circulation through the warming effects of the bath and herbal ingredients.

Because Sichuan pepper is considered warm and pungent in Chinese herbal theory, it naturally appears in some of these remedies. The gentle heat of the water combined with the spice’s warming qualities was believed to help dispel cold and promote circulation.

Even today, herbal foot baths remain a common form of traditional self-care in China. Variations can be found in wellness clinics, traditional medicine shops, and simple home remedies passed down through families.

Some traditional remedies also used Sichuan pepper foot soaks for damp foot conditions, which may have included fungal infections like athlete’s foot.

Try it at home:

Add 1–2 tablespoons of Sichuan pepper to a bowl of very warm water. Let them steep for a few minutes, then soak your feet for 15–20 minutes. Many people also add ginger slices for extra warmth.

3. Killing Parasites

Before modern sanitation and antibiotics, intestinal worms were extremely common around the world. Historical medical texts — from China to Europe — contain many treatments aimed at expelling them.

Traditional Chinese medicine was no exception. Some herbs were believed to help eliminate parasites from the digestive system, and Sichuan pepper occasionally appears in this category because of its strong aroma and warming properties.

The Compendium of Materia Medica (本草纲目), the great Ming-dynasty medical encyclopedia compiled by Li Shizhen, records how intestinal worms were believed to react to Sichuan pepper:

 “When worms encounter Sichuan pepper, they become subdued.” (蛔見椒則頭伏)

The passage explains that if a patient repeatedly vomited medicine because of worms in the stomach, physicians sometimes added roasted Sichuan peppercorns to the formula. The strong aroma was thought to disturb the worms and allow the treatment to work.

Today we understand intestinal parasites very differently. But modern research has identified compounds in Sichuan pepper with antibacterial, antifungal, and insecticidal activity in laboratory studies.

While this does not mean Sichuan pepper is an effective treatment for intestinal worms today, it suggests that ancient physicians may have observed real biological effects, even if they explained them through the medical theories of their time.

4. Toothache and Throat Problems

Traditional Chinese medical texts also connect Sichuan pepper with conditions affecting the mouth and throat.

In the Taiping Shenghui Fang (太平圣惠方), a major Song-dynasty medical text compiled for the imperial court in the 10th century, Sichuan pepper appears in several remedies for dental pain. 

One prescription, known as “Turpentine Powder” (松節散), was recommended for painful, swollen gums, and includes Sichuan pepper (蜀椒) as one of its ingredients. The herbs were crushed and boiled in wine, and the liquid was used as a hot mouth rinse, held in the mouth and then spit out.

Modern science offers a possible explanation for why remedies like this may have felt effective. The tingling sensation caused by Sichuan pepper comes from compounds called sanshools, which interact with sensory nerve receptors in the mouth. These compounds create the distinctive buzzing, numbing sensation associated with málà cuisine.

Because of this mild numbing effect, Sichuan pepper may have temporarily reduced the perception of pain, much like a very weak natural anesthetic. While this is very different from modern dental treatment, it helps explain why the spice sometimes appeared in traditional remedies for tooth and gum pain.

5. Graying Hair

Sichuan pepper also appears in early Chinese texts connected with aging and longevity.

The Shennong Bencao Jing records the herb with the following description:

 “Taken over time, it prevents the hair from turning white and helps lighten the body and prolong life.” (久服之頭不白，輕身增年)

In traditional Chinese medicine, premature graying was often associated with declining vitality, and warming herbs were sometimes believed to help preserve the body’s strength over time.

Modern science explains hair graying very differently. But researchers have identified flavonoids and other polyphenols in Sichuan pepper with strong antioxidant activity, compounds often studied for their role in cellular aging. 

While this does not mean Sichuan pepper prevents gray hair, it offers an interesting modern perspective on why ancient herbal texts associated the spice with longevity.

A Spice That Was Never Just a Spice

Today, most people encounter Sichuan pepper in the kitchen.

A handful of peppercorns tossed into hot oil. The citrus aroma rising from a bowl of mapo tofu. That unmistakable buzzing sensation on the lips.

But for centuries huā jiāo was more than flavor.

It appeared in herbal remedies, household treatments, and some of the most important medical texts in Chinese history.

From imperial palace walls to herbal foot baths, Sichuan pepper has lived many lives — as spice, medicine, symbol, and everyday ingredient.

And the next time that familiar málà tingle spreads across your tongue, you're tasting more than just heat.

You're tasting a spice with two thousand years of history behind it.