Educational information, not medical advice.See how evidence is graded
HealisticMDBuild your plan

Hainosankyuto

Traditionally used for: Short-term use for a small, local pus-filled sore; An add-on while a doctor or dentist treats the real problem.

Home

What is Hainosankyuto? Hainosankyuto is a herbal mix used in Kampo, the old herbal medicine of Japan. It is taken by mouth, most often as a dry powder stirred into hot water. Japan's health ministry (MHLW) lists it among the 148 Kampo formulas that national health insurance pays for. It is used for sores that fill with pus. That means boils, small skin abscesses (pockets of pus), sore swollen gums, and gum or tooth abscesses. Kampo doctors pick it when a sore is red, tender and starting to come to a head. Proof in people is thin. We found no good human trial that tests it against a dummy treatment. Long use in Kampo is not the same as proof that it works, so read the safety part below before you try it. One point matters most for safety. The mix holds licorice root, which can raise blood pressure and drop potassium in the blood. How does Hainosankyuto work? No one has shown how it works in the body. The Kampo idea is simple: help the body clear pus and calm red, swollen skin or gums. Lab work hints at a few actions. Some parts of the mix slow the growth of mouth germs in a dish. Others lower signs of swelling in cells and in mice. Lab and animal work does not prove the same thing happens in people. For now, treat the way it works as unknown. What forms does Hainosankyuto come in? Most people take it as granules, a dry powder in a sachet. Japanese makers such as Tsumura and Kracie sell it this way. You may also find tablets or a fine loose powder. A few Kampo doctors still cook the raw herbs into a tea, called a decoction. Strength is not the same in every brand. Follow the pack or your doctor, not a dose you read on a forum. Where it comes from: The mix comes from two older formulas, Hainosan and Hainoto. Both appear in the Jin Gui Yao Lue, a Chinese medical book from about 200 CE. Japanese doctors later joined the two into one. The joined form took the name Hainosankyuto and became a normal choice in Kampo for boils and gum trouble. It sits on the MHLW list of 148 Kampo formulas covered by Japan's health insurance, so Japanese doctors can and do prescribe it today.

Helps

What does Hainosankyuto help with? Boils and small skin abscesses (pockets of pus): This is the classic Kampo use, and it has been used this way for centuries. Kampo doctors choose it when a lump is red, sore and coming to a head. We found no controlled human trial for this use. So the backing here is tradition and doctor experience, not trial data. A boil that is spreading, very painful or coming with fever needs a doctor, not a herb. Sore, swollen gums: This is a common modern use in Japan, often next to normal dental treatment. Lab studies show some of the herbs slow mouth germs in a dish. That is test-tube work. It does not show that gums get better in real people. Use it as an extra, never as a swap for a dentist visit. Tooth or gum abscess: Kampo doctors may add it while a dentist drains and treats the tooth. It is not a stand-in for that care. A tooth abscess can spread into the face, neck or bloodstream. That can get serious fast. If your face or jaw swells, or you get a fever, go to a dentist or doctor the same day. Infected hair follicles and styes: Traditional use covers small pus-filled bumps like a stye on the eyelid. The thinking is the same as for boils. There is no human trial we can point to for this use. Do not put the powder in or near your eye. It is meant to be swallowed. Acne spots that fill with pus: Some Kampo doctors use it for short spells when spots are inflamed and full of pus. Other formulas are picked more often for acne. We found no trial in acne. Evidence here is weak. Steady acne is better handled by a skin doctor, who has treatments with real trial backing.

Hainosankyuto

Quick Facts

  • What it is: A six-herb Kampo formula from Japan, taken by mouth for boils, gum swelling and other pus-filled sores.
  • Main uses: Boils and small skin abscesses (pockets of pus), Sore, swollen gums, Tooth or gum abscess, alongside dental care, Styes and infected hair follicles
  • Best for: Short-term use for a small, local pus-filled sore, An add-on while a doctor or dentist treats the real problem
  • Active ingredients: Balloon flower root (kikyo), Peony root (shakuyaku), Bitter orange fruit (kijitsu), Licorice root (kanzo), which holds glycyrrhizin, Ginger (shokyo), Jujube date (taiso)
  • Forms: Granules in a sachet, Tablets, Fine loose powder, Decoction (herbs cooked into a tea)
  • Time to effect: Kampo practice expects a change in a few days; get medical advice if nothing shifts in a week.
  • Side effects: Mostly mild stomach upset; the licorice can raise blood pressure and drop potassium, rarely harming muscles, heart rhythm, liver or lungs.
  • Pregnancy & breastfeeding: Avoid unless your clinician advises otherwise.

Educational information, not medical advice — ask your doctor or midwife.

What is Hainosankyuto?

Hainosankyuto is a herbal mix used in Kampo, the old herbal medicine of Japan. It is taken by mouth, most often as a dry powder stirred into hot water. Japan's health ministry (MHLW) lists it among the 148 Kampo formulas that national health insurance pays for.

It is used for sores that fill with pus. That means boils, small skin abscesses (pockets of pus), sore swollen gums, and gum or tooth abscesses. Kampo doctors pick it when a sore is red, tender and starting to come to a head.

Proof in people is thin. We found no good human trial that tests it against a dummy treatment. Long use in Kampo is not the same as proof that it works, so read the safety part below before you try it.

One point matters most for safety. The mix holds licorice root, which can raise blood pressure and drop potassium in the blood.

How does Hainosankyuto work?

No one has shown how it works in the body. The Kampo idea is simple: help the body clear pus and calm red, swollen skin or gums.

Lab work hints at a few actions. Some parts of the mix slow the growth of mouth germs in a dish. Others lower signs of swelling in cells and in mice.

Lab and animal work does not prove the same thing happens in people. For now, treat the way it works as unknown.

What forms does Hainosankyuto come in?

Most people take it as granules, a dry powder in a sachet. Japanese makers such as Tsumura and Kracie sell it this way.

You may also find tablets or a fine loose powder. A few Kampo doctors still cook the raw herbs into a tea, called a decoction.

Strength is not the same in every brand. Follow the pack or your doctor, not a dose you read on a forum.

Where it comes from:

The mix comes from two older formulas, Hainosan and Hainoto. Both appear in the Jin Gui Yao Lue, a Chinese medical book from about 200 CE.

Japanese doctors later joined the two into one. The joined form took the name Hainosankyuto and became a normal choice in Kampo for boils and gum trouble.

It sits on the MHLW list of 148 Kampo formulas covered by Japan's health insurance, so Japanese doctors can and do prescribe it today.

Who should avoid Hainosankyuto?

  • Do not use if you have aldosteronism, a hormone problem that raises blood pressure and lowers potassium.
  • Do not use if you have low potassium in the blood (hypokalaemia), or if a blood test has shown it recently.
  • Do not use if you have myopathy, meaning muscle damage or unexplained muscle weakness, from any cause.
  • Do not use if you take another product that contains licorice root (kanzo), including another Kampo formula, unless a doctor has added up the total dose for you.
  • Do not use if you take digoxin, a water pill (diuretic), steroid tablets, or a drug that can upset heart rhythm, unless your doctor agrees and checks your potassium.
  • Do not use if you have high blood pressure, heart failure, or kidney disease, unless your doctor has said it is safe for you.
  • Do not use if you are pregnant or breastfeeding, unless a doctor who knows Kampo has approved it.
  • Do not give it to a child without a doctor's advice and a child-sized dose.
  • Do not use if you have had a rash, swelling or any allergic reaction to licorice, peony, ginger or any of the six herbs.
  • Never use it on its own for a spreading infection, red streaks on the skin, a fever, or a swollen face or jaw. That needs a doctor or dentist now.
  • Never use it in place of an antibiotic your doctor has prescribed.

When should you see a doctor?

See a doctor or dentist the same day if a sore is spreading, if red streaks run out from it, if your face or jaw swells, or if you get a fever or chills.

Stop taking it and get medical advice if you notice puffy ankles or face, muscle weakness or cramps, a blood pressure reading higher than usual, or a heartbeat that feels fast or uneven.

Get urgent care if you have yellow skin or eyes, dark urine and deep tiredness, which can mean liver trouble. Do the same for a new dry cough with fever and breathlessness, which can mean lung swelling.

If the sore has not improved after about a week, stop and have it looked at.

Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.

Reviewed by the HealisticMD editorial team How we grade evidence →

The published evidence for Hainosankyuto is weak or absent. That usually means no controlled trial has tested it, not that a trial found it ineffective — the two are different, and we grade only what has been published.

Remedies related to Hainosankyuto

Madonna lilyIchthyolum

The evidence behind this remedy, in one page

What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.

One email with the summary. We'll also send a short weekly evidence update — unsubscribe any time.