Can neuropathy be reversed? The question my walking partner asked me every night for a year

Can neuropathy be reversed? My friend Carol typed that exact question into her phone so many times that it was the first thing that popped up when she opened the search bar. I know, because she showed me one night on my porch, half laughing and half not. "Look at that," she said. "My phone thinks it's the only thing I care about. It's right."

Carol is 66. She ran the library at our kids' elementary school for twenty-two years, which means she has read to half the town and can still silence a room with one look over her glasses. She and I have walked the same evening loop around our neighborhood since my oldest was in middle school. Two miles, the long hill by the church, back before the streetlights come on.

Last winter she started turning back at the church. Then she started texting "rain check" on nights it wasn't raining. By April she had stopped coming altogether.

What was really going on with her feet

It started, the way it so often does, with numb toes she ignored. Then the burning. Not all day. At night, under the sheets, when the house was quiet. Her feet would go from numb to prickling to hot in the space of an hour, and she would lie there with them sticking out of the blanket like a teenager, staring at the ceiling.

"Three hours of sleep," she told me. "Four on a good night. And the next day my feet are worse. Isn't that strange? You'd think they'd be rested."

Her doctor called it peripheral neuropathy and ran the usual tests. Her blood sugar was borderline, her B12 was fine, her thyroid was fine. And then he said the sentence that sent her to that search bar: "We'll focus on managing the symptoms."

Managing. Not fixing. Not reversing. She heard that word and decided that her feet were simply going to get worse until she was in a chair.

Can neuropathy be reversed? What the specialists said this fall

I went looking for her, because that's what friends who can't fix anything do. And it turns out the question she kept typing is one the experts are fighting about right now.

This summer, a journal for nerve specialists published a formal debate on whether diabetic nerve damage can be reversed, one side arguing yes, one side arguing no. In late September, a neurology program ran an episode on the same question from this year's big peripheral nerve meeting, where a room full of specialists were polled and came out sharply divided. No clean answer. Researchers who have spent their lives on this cannot agree.

But reading both sides, I noticed something they did agree on, and it's the part nobody had told Carol. The side that says "yes, sometimes" keeps coming back to one word: timing. Early on, a nerve that misbehaves is often struggling, not destroyed. Irritated, inflamed, starved, overworked. That kind of trouble may still be changeable. Once the nerve fiber itself has been lost for years, the possibilities shrink.

Carol read that twice. "So the real question isn't can it be reversed," she said. "It's whether I'm still early enough to matter. And what I'm doing in the meantime."

What she had already tried

She was doing plenty in the meantime. None of it was wrong. It just wasn't working.

• The prescription nerve medication. It took the edge off the burning, a little. It also made her so foggy and wobbly in the mornings that she nearly missed a stair carrying a laundry basket, and she had to stop driving her grandson to preschool. She stopped the medication the same week, with her doctor's blessing.
• The pepper cream. The one made from hot peppers that everyone recommends. The first night it felt like she had poured her own burning feet into a campfire. She washed it off at two in the morning.
• The drugstore "nerve support" vitamins. A B-complex in a bright yellow bottle. She took it faithfully for three months. Her feet didn't notice.

Each of those may help some people. But each one was aimed at a single thing: the feeling, or a vitamin she wasn't actually low in. Not one of them touched the thing that was quietly running her life, which was the nights.

The loop that keeps a struggling nerve from settling

Here's the piece I wish someone had drawn for her on a napkin a year earlier, and the one you won't get from a quick search.

Think of an irritated nerve like a smoke alarm with a low battery. It isn't broken. It's just stuck chirping, firing off signals when nothing is really wrong. In your feet, that chirp is the burning, the buzzing, the pins and needles. And like a chirping alarm, it is loudest at night, when everything else in the house goes quiet and there is nothing to drown it out.

Now here is the cruel part. The deep part of sleep is when your body does its repair work. Muscles, skin, and nerves too. So the burning wakes you up. You lose the deep sleep. The nerves miss their repair shift. The next day they are a little more irritated, a little more on edge. So the next night the chirping is louder. And around it goes.

Pain, then no sleep, then more pain. Carol had been inside that loop for over a year. Every pill and cream she tried was aimed at one corner of it. Nothing was aimed at the whole circle: the irritation, the inflammation around the nerve, and the jangled, on-edge nervous system that wouldn't let her sleep through it.

That's when the "can it be reversed" question changed shape for her. If her nerves were still in the struggling stage, and that is a big if that only time and her doctor could answer, then every night spent stuck in that loop was a night of repair she wasn't getting back. Waiting to see wasn't neutral. Waiting was the loop winning.

I'm not a doctor, so I'll do this the way I'd want it done for me: tell you what Carol actually ended up taking, how it came into her life, what's in it, and what happened month by month. She almost threw it away. Twice.

The bottle in the locker room

Carol does water aerobics on Tuesdays and Thursdays, because it's the one place her feet don't bother her. There's a woman in that class named Marlene, 71, a retired postal carrier who walked a route for thirty years and has the opinions to prove it. Marlene had the same feet. Marlene had also, Carol noticed, stopped sitting on the bench between sets.

One Thursday in the locker room, Carol asked her what changed. Marlene didn't give a speech. She dug in her bag, pulled out a bottle, and held it up. "My son-in-law sent me this after I complained at Easter," she said. "I thought it was a joke. Look at the name."

The name was NeuroSalt. Carol's first reaction, she told me later, was that her doctor already lectures her about salt. Her second was that she had a cabinet full of bottles with clever names. She took a picture of the label on her phone mostly so she could prove to me it was silly.

It wasn't silly. There is no salt on that label at all. It's a capsule. And when she put her readers on and read the supplement facts out loud to me, she stopped halfway and said, "Denise. This is the loop."

• Passionflower, 145 mg. An old calming herb. The company describes it as acting on the nervous system to quiet that "nerves on edge" feeling, and as helping sleep. "That's the chirping alarm," Carol said.
• Marshmallow root, 110 mg. Yes, the plant the candy was named after. The company calls it a protector for irritated nerve tissue, aimed at the inflammation and that on-fire feeling. "That's the burning."
• Corydalis, 100 mg. A root used for centuries in traditional Chinese medicine. The company's page says it works on the pain signals themselves, without the heavy feeling that her prescription gave her.
• Prickly pear extract, 50 mg. The cactus fruit, as a concentrated extract. It's there for the slow oxidative wear on nerve fibers, the long-term damage side of things.
• California poppy seed, 45 mg. Not the poppy you're thinking of. A gentle herb the company names specifically for breaking the pain, then insomnia, then more pain cycle.

"So one part calms the alarm, one part cools the fire, one part protects the wiring, and two parts let me sleep through the repair shift," she said, taking her glasses off. "Somebody actually thought about the whole circle."

She still made me look up every ingredient before she'd order anything. Then she showed the label to her doctor, because she is not reckless, and he didn't object. Two things pushed her the rest of the way. It's two capsules a day with a glass of water, which after her cabinet felt manageable. And the company offers a 60-day money-back promise from the date of purchase, so if nothing changed she could send the bottles back, even empty, and be done.

What happened, month by month

She takes her two capsules after dinner with a full glass of water, which is her own choice, because the nights were the problem. Here is her timeline, as honestly as she gave it to me.

• Week 1. Nothing she could point to. She texted me on day six: "Still burning. Still awake at 2. Day 6 of my experiment, Dr. Hollis."
• Weeks 2 and 3. The burning still came, but she noticed she was falling back asleep after it instead of lying there until dawn. "Five hours," she reported, like a lottery win. Her feet stayed under the blanket one night and she didn't realize it until morning.
• Month 1. The first thing she mentioned wasn't her feet. It was that she wasn't dreading bedtime. She had been dreading bedtime for a year and hadn't realized it until it stopped.
• Months 2 and 3. She showed up at my door at seven on a Tuesday in sneakers. We did the loop, slowly, all the way past the church and up the long hill. Her feet still tingle some evenings. But she sleeps most nights, and she walks most nights, and she says the two go together.

Why did it take that long? Because nothing in it numbs anything. An irritated nerve that has been stuck in that loop for a year doesn't calm down in a weekend, and the sleep has to come back before the repair can. The company's own advice is that the longer it's used consistently, the steadier the results, and most of their customers choose a six-month supply for exactly that reason. Carol started with Marlene's spare bottle and then ordered the six-month kit herself, because she did not want to stop right as the nights were turning.

Who this is for, and who it isn't

It may be worth a look if you are over 50, your feet burn, buzz, tingle or go numb, it's worse at night and it's costing you sleep, you've had the basics checked (blood sugar, B12, thyroid), and the creams, soaks and single vitamins only help a little or not at all.

It is not for you if your numbness came on suddenly, is spreading fast, affects one side of your body, comes with real weakness in a leg, or there's a sore on your foot that won't heal. That needs a doctor this week, not a supplement. It's also not for you if you want something to work by Friday; it won't, and Carol would tell you so. If you're pregnant, nursing, under 18, or on medication for nerve pain, diabetes, blood pressure, or blood thinning, show your doctor the label first. Carol did.

The promise that made it easy to say yes

The company's page shows a 60-day money-back guarantee from the date of purchase. They ask that you give it at least 30 days of use, and if you're not satisfied with the product or your results, you contact them and return the bottles, full or empty, for a refund. It's made in the United States in an FDA-registered facility, and it's a one-time order with no subscription. Carol's worst case was two months of two capsules and an email. Her best case was the evening loop.

Where she is now

Results vary, and hers are hers. Nobody has told Carol her neuropathy is "reversed," and she'd laugh at anyone who did. She still checks her feet every night, still sees her doctor, still watches her borderline sugar. But she stopped typing that question into her phone sometime in August. "I stopped needing the answer," she said, "once I was sleeping."

P.S. Last week Carol beat me up the hill by the church and waited at the top with her hands on her hips like a gym teacher. If you're the one texting "rain check" on nights it isn't raining, this is the page she wishes Marlene had shown her a year sooner.

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