In short — Peripheral nerve stimulation delivers mild electrical pulses to one or more nerves; this article covers the single-nerve form, which may ease pain unresolved by medication and therapy. Typical uses include post-surgical nerve injury, nerve-mapped CRPS, or focal diabetic neuropathy, and sometimes occipital neuralgia (off-label). A temporary wire may lead to an implant decision or serve as a stand-alone weeks-long treatment.
A patient in Orange Park had surgery on their foot months ago. The incision healed, but the top of the foot still burns and stings with even light contact from a sock or shoe, long after any reasonable healing timeline.
Another patient in Mandarin has had a throbbing, tender band of pain across the back of the head for over a year, made worse by resting against a pillow or wearing sunglasses, that medication has only partly touched.
Both stories point to the same underlying idea: pain that stays confined to the territory of one specific nerve, rather than spreading broadly, sometimes responds best to a treatment aimed at that one nerve.
What peripheral nerve stimulation actually is
Peripheral nerve stimulation (PNS) uses a thin lead, placed alongside a single peripheral nerve under ultrasound or X-ray guidance, to deliver low-level electrical impulses. Those impulses can change how the nerve transmits pain signals, often reducing the intensity of pain in the area that nerve supplies.
The lead connects to a small generator or an external transmitter, depending on the system used, and settings can be adjusted over time as a patient's response changes.
A common point of confusion: PNS versus a spinal cord stimulator
Patients often assume "nerve stimulator" means the same device regardless of where the pain is coming from. That isn't quite right, and the distinction matters for who is a reasonable candidate.
A spinal cord stimulator targets the spinal cord itself and is generally considered for broader nerve-related pain, such as pain radiating down a leg after spine surgery or diabetic neuropathy affecting both feet. Peripheral nerve stimulation instead targets one or more specific nerves outside the spine; the single-nerve form covered in this article tends to fit pain that stays within that nerve's territory — the back of the head, part of an arm or leg matching a specific nerve's distribution, or the area around a prior surgical site — rather than pain spread across a wider region.
Who a peripheral nerve stimulator may help
Candidates often have pain lasting more than three months in a pattern that follows a specific nerve, depending on the diagnosis and exam findings. Conditions where PNS is sometimes considered include:
- Pain from post-surgical nerve injury, such as after a foot, hip, or abdominal procedure
- Complex regional pain syndrome (CRPS) when the pain can be mapped to a specific nerve or nerves, in selected patients after other appropriate care has been tried
- Painful diabetic or post-traumatic neuropathy confined to a specific nerve distribution
- Occipital neuralgia, when pain follows the path of the occipital nerves at the back of the head — occipital nerve stimulation for this use is generally an off-label application of PNS technology rather than a condition-specific FDA-approved indication, which can affect the evidence base and insurance coverage and is worth discussing directly
PNS is not intended for widespread or whole-body pain, and it does not replace an evaluation to confirm which nerve, if any, is driving a patient's symptoms.
What happens during the trial
As with a spinal cord stimulator, treatment often starts with a temporary trial rather than a permanent decision. A thin wire is placed near the target nerve and connected to a small external stimulator, typically worn for three to five days.
Meaningful relief during that window, generally a reduction of at least half of the baseline pain, is generally required before a permanent implant is discussed. If the trial does not provide enough benefit, the temporary wire is simply removed, and other options can be reconsidered. Not every PNS system works this way — some temporary systems, with an external generator but the lead still placed beside the nerve, are used as a stand-alone course of treatment lasting several weeks, with the lead removed afterward and no permanent implant placed at all. Which pathway applies depends on the specific system and diagnosis, and is something to clarify before a trial begins.
What this means for patients
Pain that stays within a well-defined nerve territory and hasn't improved enough with medication, physical therapy, or other conservative care is worth discussing with a physician who can localize the source, rather than assuming the only remaining option is a higher medication dose. Not every patient with nerve-territory pain needs a stimulator, and for systems that use a screening trial, that trial exists specifically so a patient and physician can confirm meaningful benefit before anything permanent is placed.
Recovery after the procedure is typically outpatient, but activity restrictions depend on which system is in place. After a short trial, a return to most normal activities within about a week is common, with heavy lifting generally avoided for one to two weeks. A permanent implant may call for its own, sometimes longer, system-specific restrictions to protect the healing site and reduce the chance of lead migration. A temporary lead left in place for a longer, weeks-long course of treatment usually calls for continued precautions against significant movement or dislodgement for as long as that lead remains in place. Follow-up visits are used for programming adjustments, and the specific activity guidance for your system should come from your care team.
Risks and infection precautions worth understanding
Possible risks include infection, bleeding, lead migration, device malfunction, nerve irritation, and inadequate pain relief despite a promising trial. Because a stimulator trial leaves temporary leads passing through the skin, Dr. Eaddy's practice typically uses a skin-preparation routine — often an antibacterial ointment and an antiseptic wash used in the days beforehand — and prescribes an oral antibiotic for the length of the trial as part of this office's general infection-prevention approach. Antibiotic and skin-prep protocols for a stimulator trial vary by practice and situation, so follow the exact instructions your own care team gives you.
Seek prompt medical attention for fever, spreading redness or swelling near the lead site, or a new or worsening pain that is not simply the expected return of baseline pain once a temporary trial lead is removed.
This article is for general educational purposes only and is not a substitute for a medical evaluation. It does not diagnose any individual's nerve pain or guarantee any particular outcome from treatment. Seek prompt medical care for signs of infection at a lead site or new weakness or numbness that concerns you.
The bottom line
Pain that follows the path of one identifiable nerve is a different problem than pain that spreads broadly, and it can call for a different, more targeted approach. Peripheral nerve stimulation is one option that may be worth discussing for selected patients whose pain has not responded enough to medication and therapy. Depending on the system, that conversation may start with a short, reversible trial before any permanent-implant decision, or with a longer stand-alone course of treatment that involves no implant at all.
A careful evaluation can help determine whether a specific nerve is driving the pain pattern, and whether a trial makes sense given the diagnosis and history.
Frequently Asked Questions
What is peripheral nerve stimulation?
Peripheral nerve stimulation (PNS) uses one or more thin leads placed alongside a peripheral nerve to deliver mild electrical impulses that can help calm the pain signals that nerve is sending. This article focuses on PNS aimed at a single identifiable nerve, the most common use, though some systems use multiple leads for pain not confined to one nerve; PNS in general is not intended for widespread or whole-body pain.
How is peripheral nerve stimulation different from a spinal cord stimulator?
A spinal cord stimulator targets the spinal cord itself and is generally used for broader nerve-related pain, such as pain radiating down a leg after spine surgery. Peripheral nerve stimulation instead targets one or more specific nerves outside the spine; this article focuses on the single-nerve form, generally considered when pain stays within that nerve's territory, such as the back of the head or part of an arm or leg matching a specific nerve's distribution.
What happens during a peripheral nerve stimulation trial?
A temporary wire is placed near the target nerve under image guidance and connected to a small external stimulator, often worn for three to five days. For some systems, meaningful relief during that window — generally a reduction of at least half of the baseline pain — is used to decide whether a permanent implant is considered next; other systems, with an external generator but the lead still placed beside the nerve, are used as a stand-alone course of treatment lasting several weeks with no implant at all. Which pathway applies depends on the specific system.
Who might be a candidate for peripheral nerve stimulation?
Candidates often include patients with pain lasting more than three months from post-surgical nerve injury, complex regional pain syndrome when the pain can be mapped to a specific nerve or nerves, or painful diabetic or post-traumatic neuropathy confined to a specific nerve distribution, who have not improved enough with medication and physical therapy, depending on the specific diagnosis and exam findings. Diabetic neuropathy affecting both feet is broader nerve pain generally considered for spinal cord stimulation instead. Occipital nerve stimulation for occipital neuralgia is sometimes considered as well, though this use is generally off-label rather than a condition-specific FDA-approved indication.
What are the risks of peripheral nerve stimulation?
Possible risks include infection, bleeding, lead migration, device malfunction, nerve irritation, and inadequate pain relief. Because the trial uses temporary leads passing through the skin, an antibiotic and skin-preparation routine are often used to reduce infection risk; the specific protocol varies by practice, so follow the instructions your own care team gives you.
Related patient education
- Complex Regional Pain Syndrome After Injury or Surgery: What Patients Should Know Early
- Painful Diabetic Neuropathy: When Medication Isn't Enough, and What May Help Next
- Is It Migraine, or Occipital Neuralgia? How to Tell the Difference
- Spinal Cord Stimulator Trial After Back Surgery: When It May Be Worth Asking About
- Preparing for an interventional pain procedure
Related services
- Peripheral nerve stimulation service overview
- Complex regional pain syndrome care
- Neuropathy evaluation and treatment
- Spinal cord stimulation
Is your pain following one specific nerve?
A careful evaluation can help sort out whether a single nerve is driving the pattern, and whether a trial fits your history and goals.
Contact the office about an appointment