Tea tree oil for hemorrhoids: does it work, and is it safe?

Tea tree oil for hemorrhoids is a common tip, usually passed along because the oil has a reputation for fighting germs and calming skin. The trial evidence for hemorrhoids is a single small study, and it did not test tea tree oil on its own. The safety evidence is much larger: pure tea tree oil is one of the best documented causes of allergic rashes among essential oils.

This page covers that one trial, the allergy data, why the dropper bottle is riskier than the finished products on a drugstore shelf, what other essential oils have been tried, and what to use instead. The full table of plant remedies and their grades is in natural remedies for hemorrhoids.

Does tea tree oil work for hemorrhoids?

We do not know, and the one trial cannot tell us. A double-blind, placebo-controlled trial of a hemorrhoid gel enrolled 36 people with grade 1 to 3 hemorrhoids and split them into two equal groups ¹. One group used a gel made of hyaluronic acid, tea tree oil and methyl-sulfonyl-methane. The other used a placebo gel. After 14 days, the active gel had reduced anal pain, pain with bowel movements, visible bleeding, itching and irritation more than placebo, and people tolerated it well ¹.

That is a positive result for that gel. It is 18 people per group, and three active ingredients were tested together. Any one of them, or the combination, could explain the benefit. The trial does not show that tea tree oil from a dropper bottle will do the same thing.

Why tea tree oil is used at all

Tea tree oil is steam-distilled from the leaves of an Australian tree ³. Lab and clinical research has looked at its action against bacteria and fungi and at anti-inflammatory effects ⁵. That is the logic behind putting it on sore skin.

The clinical picture is weaker than the lab picture. A 2023 systematic review of tea tree oil trials found 46 randomized trials across dentistry, skin, infections, eyes and feet ³. It found some support for mouthwashes and gum treatment, and said more evidence was needed for acne and for any calming effect on skin ³. The authors rated the overall quality of the research as poor to modest ³. NIH’s complementary health center says there is not enough evidence to judge whether tea tree oil on the skin helps most conditions ⁴.

The rash problem

The best reason to keep pure tea tree oil away from hemorrhoids is allergy. A review of tea tree oil contact allergy found that it has caused more published allergic reactions than other essential oils since the first reports in 1991 ². In routine patch testing, between 0.1 and 3.5 percent of people reacted ². Close to 100 allergic patients have been described in case reports, and most of them had put pure oil on their skin rather than using a product that contained a little of it ².

Age matters too. Fresh tea tree oil is a weak to moderate sensitizer, and oil that has oxidized, from age or air, is more allergenic ². NIH notes that redness and irritation are more likely when a product is old or has been exposed to heat, light or air ⁴. A bottle that has sat open in a warm bathroom for a year is the riskiest version.

An allergic rash on the anal skin itches and burns, which is easy to mistake for a worse hemorrhoid. People then apply more oil, and the rash spreads.

If you still want to try it

The safest way is the one closest to the trial: a finished product made for hemorrhoids, used on the outside skin, for a short time.

1. Choose a finished gel or cream, not a bottle of essential oil.
2. Check the date and storage. Skip old or warm-stored products ⁴.
3. Test a small patch on your inner arm for a day first.
4. Use it on the outside skin only, for no more than 2 weeks, the length of the trial ¹.
5. Stop at the first sign of redness, more itching, burning or small bumps.

If you already react to fragrances or other essential oils, skip tea tree oil completely. Many people who react to it also react to turpentine oil, the review found ².

Other essential oils for hemorrhoids

Online lists of essential oils for hemorrhoids often name lavender, frankincense, cypress or peppermint. A PubMed search in October 2026 found lab and computer-model studies of frankincense (boswellia) and no clinical trials in people with hemorrhoids for any of the four.

Myrtle is the exception with data. In a triple-blind trial, 134 women with grade 1 or 2 internal hemorrhoids after childbirth used either a myrtle ointment or a standard hemorrhoid ointment for 4 weeks ⁷. Symptoms improved about equally in both groups, itching was lower with myrtle at 4 and 8 weeks, and the women were more satisfied with it ⁷. A review of myrtle research described similar results in small Iranian studies of lotions and ointments ⁸. Those were prepared products, not drops of oil, and they are hard to buy in the US. Myrtle and other plant extracts are graded in herbal supplements for hemorrhoids.

What to use instead

The American Gastroenterological Association’s review says there is little data that topical hemorrhoid products work in general ⁶. The steps with more support are not in a dropper bottle:

• Fiber and water. In seven trials, fiber cut the risk of bleeding by half ⁹. Build it up as described in the hemorrhoid diet.
• Warm sitz baths for spasm pain. Warm water at 40°C lowered anal sphincter pressure in a lab study ¹⁰. Steps are in how to take a sitz bath.
• A plain barrier ointment for raw, itchy skin, or a short course of a medicated cream, compared on the best hemorrhoid ointments.
• Plain coconut oil for dry outside skin, with nothing mixed in.

Tea tree oil travels online with apple cider vinegar, garlic and coconut oil. The first two have published burn reports, covered in apple cider vinegar and other viral hemorrhoid remedies. Witch hazel, a gentler plant liquid, is graded in does witch hazel work for hemorrhoids?.

When to see a doctor

MedlinePlus recommends seeing a clinician when home treatment has not helped within a week, and getting rectal bleeding checked, since hemorrhoids are only one cause ¹¹. Screening for colon cancer is recommended from age 45 for adults at average risk ¹².