What I Tell Patients Whose Lyme Symptoms Never Went Away

August 19, 2026; By rarebluemoon

A particular kind of patient tends to find their way to my office. They had Lyme disease. They were diagnosed, they took the antibiotics they were prescribed, and by every measure their physician had available, they were finished. Then months went by, and the fatigue did not lift. The joint pain moved around. The word-finding problems at work did not improve on their own.

By the time they sit down across from me, most of them have been told some version of the same thing: your labs look fine, so this is probably stress, or depression, or aging. Many have started to wonder whether they are imagining it.

They are not. And the most useful thing I can do in a first visit is usually not to offer therapy. It is to show them the data that says their experience is real, documented, and studied.

The number that changed how I talk about this

In 2022, researchers at the Johns Hopkins Lyme Disease Research Center published a prospective cohort study that I now reference in nearly every one of these conversations. They followed patients who had been diagnosed early and treated promptly, which is to say the best-case version of Lyme care, and compared them against healthy controls.

Roughly 14 percent of the treated patients met criteria for post-treatment Lyme disease, against about 4 percent of controls. Persistent fatigue, pain, and cognitive difficulty occurred despite early diagnosis and standard antibiotic therapy, and the differences held after controlling for comorbidities and other factors.

Sit with that for a moment. Even when everything goes right, roughly one in seven patients does not simply return to baseline. The authors themselves noted this likely understates the real-world rate, because their cohort excluded exactly the patients who tend to do worst: the ones whose diagnosis was delayed or missed.

I am not presenting that figure as an explanation. It does not tell us why those patients are still sick. What it does is close off the least useful conversation in this entire field, the one where a physician implies the symptoms are manufactured. The literature has already settled that question.

Why “your Lyme test was negative” answers less than it seems

Patients often arrive holding a negative antibody panel as though it were a closed door. I understand why. Nobody explained the limits of the test to them.

Here is the part that rarely gets explained. Once you have already been treated, serology is a weak instrument for telling us how you are doing now. Antibody levels can linger or fade on their own timeline, largely independent of how you feel. A review of persistent symptoms in Lyme disease from the same Hopkins group describes post-treatment antibody testing as insensitive, with no FDA-approved alternative currently available.

I want to be precise about what that does and does not mean, because this is where my field sometimes overreaches. If you never had Lyme disease and have never lived in or traveled to a region where it is common, a negative test is genuinely reassuring, and the CDC says so directly. The situation I am describing is narrower: a patient with documented prior infection whose post-treatment panel is being used to decide whether today’s symptoms are real.

The co-infection problem

There is a second problem, and it gets missed constantly. A blacklegged tick is not a single-organism delivery system. Babesia microti and Anaplasma phagocytophilum travel in the same vector and can be transmitted in the same bite, and both produce symptom pictures that overlap with Lyme. Other organisms, Bartonella among them, are commonly tested for in this population, though whether ticks transmit Bartonella to humans is still unsettled. When I order that panel, I say so out loud. If the only question you asked the laboratory was about Borrelia, the only answer you can get back is about Borrelia.

So when a patient tells me they were tested, my next question is always which test, when, and what else was on the panel.

What the antibiotic question actually settled

I want to be direct here, because this is where my field earns some of its worst reputation.

Patients frequently arrive asking for extended courses of antibiotics, sometimes intravenous, often because they read that this is what a Lyme-literate physician provides. I do not start there, and the reason is that the question has been studied in a randomized, double-blind, placebo-controlled trial.

In the PLEASE trial, published in the New England Journal of Medicine, patients with persistent symptoms attributed to Lyme disease received an initial course of ceftriaxone and were then randomized to twelve additional weeks of doxycycline, clarithromycin with hydroxychloroquine, or placebo. Longer-term antibiotic therapy did not produce better outcomes than the shorter course.

The risks on the other side of that ledger are not theoretical. The CDC notes that long-term antibiotic use has been linked to serious and sometimes fatal complications, including sepsis and colitis, and the reference list on that page includes case reports of precisely that happening to patients being treated for suspected Lyme disease.

A physician who hands you months of antibiotics without discussing that trial is not giving you aggressive care. They are giving you care that ignores the best available evidence, and charging you for it.

What a real workup covers

If the answer is not more antibiotics, patients reasonably ask what the alternative is. My answer is that you cannot decide what to do until you know what you are looking at. A thorough evaluation should account for:

• Exposure history in detail. Where you have lived, worked, and traveled, not just where you live now. Most of my South Florida patients were exposed somewhere else, often years earlier.
• Symptom timeline. What began when, and what the relationship was to the initial illness.
• Expanded serology plus co-infection screening, rather than a single-target panel.
• Inflammatory and immune markers. Several proposed mechanisms for persistent symptoms involve immune dysregulation, and that is worth characterizing even though the science is unsettled.
• The obvious confounders. Thyroid function, sex hormones, micronutrient status, and sleep architecture all produce fatigue and cognitive complaints on their own. Missing a treatable thyroid problem because everyone was focused on ticks is a real failure mode.

This is also why my practice built a wider diagnostic panel around a wider panel than a standard workup. Not because more tests are automatically better, but because a narrow panel produces a narrow answer.

What I do not tell patients

I do not tell them I know why they are sick. The etiology of persistent symptoms after Lyme disease is genuinely unknown. Several mechanisms have been proposed: bacteria that persist after therapy, an immune system that stays switched on after the organism is gone, and changes in how the nervous system processes pain signals. None has been established, and I am not going to pretend otherwise in a first visit.

I do not tell them there is a protocol that clears the infection, because no such claim is supported.

And I do not tell them how long this will take, because I do not know, and the physicians who do offer that number are guessing in a way I am not willing to.

What I offer instead is a thorough evaluation, an honest reading of what the results do and do not show, and a plan that gets revisited against repeat testing rather than assumed to be working. Patients who have spent two years being told nothing is wrong tend to find that unglamorous. They also tend to find it a relief.

If you have been through the standard course and you are still not right, the next step is not a more aggressive therapy. It is a more complete question. That is the entire premise behind how we approach Lyme-literate functional medicine in West Palm Beach, and it is the only honest starting point I know of.