Herbal medicine is not new in the context of infectious illness. Across every documented culture, plants have been the primary medical resource for millennia — and some of the most thoroughly researched antimicrobial compounds in modern pharmacology began as traditional plant medicines. This page is about why herbs are discussed in the Lyme community, what the science says, and where to go from here.
Why herbs are discussed in the context of Lyme disease
Standard antibiotic treatment is well-evidenced for early, localised Lyme infection. For many people with persistent or complex presentations, however, antibiotics alone have not resolved all symptoms — and this is where botanical approaches have gained significant traction, both in patient communities and among clinicians working within the ILADS framework.
Several properties make herbs particularly relevant to Lyme disease specifically:
Pharmaceutical antibiotics work through a single mechanism — disrupting a specific bacterial process. Many plants contain dozens of active compounds that act simultaneously through multiple pathways. This makes it harder for bacteria to develop resistance, and means a single herb may address antimicrobial, anti-inflammatory, and immune-modulating needs at the same time.
Borrelia can exist in multiple forms — actively spiralling, dormant cyst forms, and biofilm-protected colonies. Standard antibiotics target actively replicating bacteria and have limited effect on persister forms. Several herbs have shown in vitro activity against both growing and dormant forms — a meaningful difference when persistent infection is the problem.
Much of the suffering in Lyme disease comes from the body's own dysregulated inflammatory response — not just the bacteria. Herbs can modulate cytokine signalling, calm neuroinflammation, and support immune regulation in ways that antibiotics cannot. This complementary dimension is a core part of why botanical protocols are used alongside, not only instead of, antibiotic therapy.
The Johns Hopkins study — a turning point
In 2020, researchers at Johns Hopkins University published a study that evaluated twelve herbs commonly used for Lyme disease. Seven showed greater activity against Borrelia burgdorferi in laboratory conditions than standard antibiotics — including against persister (cyst) forms that are resistant to doxycycline. This was the first peer-reviewed study to document this level of activity in herbs specifically selected from patient and practitioner protocols.
The seven herbs with greater in vitro activity than doxycycline: Cat's Claw, Cryptolepis, Chinese Skullcap, Japanese Knotweed, Sweet Wormwood, Thyme, and Oil of Oregano.
This does not prove clinical efficacy. In vitro activity — what happens in a test tube — does not automatically translate to the same outcome in a living human body with different pharmacokinetics, absorption, metabolism, and immune context. No randomised controlled trials exist for any herbal Lyme protocol. The absence of trial data does not mean the herbs don't work — it reflects the economic reality that plants cannot be patented, and therefore attract very little pharmaceutical research funding.
What the research does provide is a legitimate scientific basis for taking botanical approaches seriously — something that was largely absent before 2020.
How to understand traditional plant medicine
Many of the herbs used in Lyme protocols have histories of medicinal use spanning hundreds or thousands of years across multiple cultures. Japanese Knotweed root was used in Chinese and Japanese medicine long before resveratrol was isolated. Cat's Claw has been used in Peruvian Amazonian medicine for centuries. Andrographis is documented in Ayurvedic, Chinese, and Southeast Asian traditional systems.
Traditional use is not proof of efficacy — but it is not nothing, either. Observational data accumulated over generations represents a form of empirical knowledge that modern science is only beginning to investigate systematically. The fact that a plant has been used persistently across multiple independent cultures for a specific purpose is a meaningful signal — not sufficient evidence alone, but a reasonable basis for scientific investigation.
This is how most herb-based drug development actually works: traditional use identifies a candidate, science investigates the mechanism. The majority of pharmaceutical drugs have a traditional plant medicine origin somewhere in their history.
The Buhner Protocol — the reference point for herbal Lyme treatment
Of the structured herbal protocols used in the Lyme community, the one developed by Stephen Harrod Buhner is the most thoroughly documented, the most widely used, and the most grounded in published science. Buhner spent decades cross-referencing traditional plant knowledge with microbiological and immunological research — building a protocol that addresses not just the bacteria but the full biological picture of how chronic Lyme damages the body.
His framework covers Borrelia and all major co-infections — Babesia, Bartonella, Ehrlichia, Anaplasma, and Mycoplasma — each with its own targeted herb selection. Other protocols exist in the Lyme community, including the Cowden Protocol (drawing on Amazonian plant medicine) and the Zhang Protocol (drawing on Traditional Chinese Medicine), but the Buhner approach remains the most referenced and best-documented starting point.
The full Buhner guide covers the philosophy, all core and expanded herbs, and separate protocols for each co-infection — with sources and scientific context throughout.
What to be aware of
Some herbs in common Lyme protocols have significant drug interactions, contraindications, or side effects. Japanese Knotweed and Chinese Skullcap affect cytochrome P450 liver enzymes — the same pathway used by many prescription medications. Andrographis causes allergic reactions in a small percentage of people. Liver-toxic herbs exist in traditional medicine systems and can cause serious harm if used incorrectly or for too long.
The herbal supplement market is largely unregulated. The same herb from two different suppliers can vary dramatically in potency, purity, and active compound concentration. Sourcing matters — and the quality considerations for tinctures differ from those for powdered capsules.
The most experienced practitioners in this field — including Buhner himself — consistently recommended using herbal protocols alongside antibiotic therapy, not as a replacement. The two approaches address different dimensions of the same disease. That said, the drug interaction question becomes more important when combining herbal and pharmaceutical treatment simultaneously.
Back to the full overview of treatment approaches — standard antibiotics, ILADS, and herbal protocols compared.
Healing mindset checkpoint
The breadth of available herbal knowledge can feel both encouraging and overwhelming. You don't need to understand all of it to begin. The Buhner guide is a clear, structured starting point — start there, not everywhere at once.
Read about healing mindset →Further reading
- Feng J. et al. — Evaluation of natural and botanical medicines for activity against growing and non-growing forms of B. burgdorferi. Front Med (Lausanne). 2020;7:6
- Buhner S.H. — Healing Lyme (2nd ed., 2015), Healing Arts Press
- Shor A., Schweig S. — Herbal medicines with anti-borrelial activity. Journal of Integrative and Complementary Medicine, 2023
- ILADS — Evidence-based guidelines for Lyme disease: ilads.org
Last updated: March 2026