Neuropathic Pain: Causes and Treatment Approaches

A brand new way

A Comprehensive Guide for Sydney Patients | Auscare Store

 Introduction

A Comprehensive Guide for Sydney Patients: Neuropathic pain, also known as nerve pain or neuralgia, is a complex chronic pain condition that affects approximately 7-10% of the population worldwide . In Australia, up to 1 in 10 people live with neuropathic pain, which severely impacts quality of life and carries a substantial social and economic burden .

Unlike ordinary pain that signals tissue damage, neuropathic pain arises from damage or dysfunction within the nervous system itself . This makes it particularly challenging to treat with conventional pain relievers.

At Auscare Store, we provide educational resources to help Sydney patients understand their health conditions and treatment options. This guide explains the causes of neuropathic pain and explores evidence-based treatment approaches.

 What Is Neuropathic Pain?

Neuropathic pain is defined as pain caused by a disease or injury affecting the somatosensory nervous system . It can result from damage to:

 
 
Location Description
Peripheral nerves Nerves outside the brain and spinal cord
Spinal cord Damage to nerve pathways within the spine
Brain Central nervous system injury or disease

Common Descriptions of Neuropathic Pain

Patients often describe neuropathic pain as:

  • Burning or hot sensation 

  • Shooting or stabbing pain 

  • Electric shock-like feelings 

  • Pins and needles (paraesthesia) 

  • Tingling or pricking sensations 

  • Cold or squeezing discomfort 

  • Numbness with associated pain

Key Features

  • Allodynia: Pain from non-painful stimuli, such as light touch or sheets brushing against the skin 

  • Hyperalgesia: Increased sensitivity to painful stimuli 

  • Often worse at night 

  • Can be mild or severe, constant or intermittent 

What Causes Neuropathic Pain?

Neuropathic pain can arise from various underlying conditions and injuries affecting the nervous system .

1. Metabolic Causes

 
 
Condition Description
Diabetic peripheral neuropathy Nerve damage from high blood sugar levels; one of the most common causes 
Vitamin B12 or thiamine (B1) deficiency Nutritional deficiencies affecting nerve health 

2. Infectious Causes

 
 
Condition Description
Postherpetic neuralgia Ongoing pain after shingles (herpes zoster) infection 
HIV/AIDS Associated neuropathy 

3. Structural & Mechanical Causes

 
 
Condition Description
Spinal cord injury Damage to the spinal cord can cause neuropathic pain below the level of injury 
Nerve compression or entrapment Such as sciatica or carpal tunnel syndrome 
Phantom limb pain Pain after amputation 

4. Disease-Related Causes

 
 
Condition Description
Multiple sclerosis Demyelinating disease affecting nerve transmission 
Stroke Central post-stroke pain 
Cancer and its treatment Radiation, surgery, or chemotherapy-induced nerve damage 

5. Other Causes

 
 
Cause Description
Heavy alcohol use Alcoholic neuropathy 
Autoimmune diseases Conditions affecting peripheral nerves 
Certain medications Drug-induced neuropathy

6. Idiopathic

In some cases, no specific cause can be identified despite thorough investigation .

How Is Neuropathic Pain Diagnosed?

Accurate diagnosis is essential for effective treatment. Your doctor will typically :

Clinical Assessment

  • Detailed history of symptoms and pain characteristics

  • Review of general health and medications

  • Physical examination including:

    • Muscle strength and coordination

    • Reflexes

    • Sensitivity to touch, pain, and temperature

Diagnostic Tests

 
 
Test Purpose
Blood tests Identify underlying conditions (diabetes, vitamin deficiencies)
Nerve conduction studies Measure how quickly nerves carry electrical signals
CT or MRI scans Look for structural causes of nerve compression or damage

Your doctor may refer you to a pain specialist or multidisciplinary pain clinic for further assessment and treatment .

💊 Evidence-Based Treatment Approaches

Treatment for neuropathic pain aims to relieve symptoms, improve function, and enhance quality of life . A combination of approaches is often most effective.

📋 First-Line Treatments (Strongest Evidence)

The 2025 International Association for the Study of Pain (NeuPSIG) guidelines recommend the following as first-line treatments :

 
 
Medication Class Examples How They Work
Alpha-2 delta ligands Gabapentin, Pregabalin Bind to calcium channels, reduce excitatory transmitter release 
Serotonin-norepinephrine reuptake inhibitors (SNRIs) Duloxetine, Venlafaxine Influence neurotransmitter levels to reduce pain 
Tricyclic antidepressants (TCAs) Amitriptyline, Nortriptyline Modulate pain signaling pathways

Important considerations :

  • These medicines have modest benefits and require careful patient screening

  • Close monitoring is essential

  • Effects vary between individuals

💊 Second-Line Treatments

 
 
Treatment Examples Notes
Topical agents Lidocaine patches, Capsaicin cream/patch Small effects but high safety and tolerability; suitable for older adults or those on multiple medications 
Tramadol Weak opioid with SNRI properties 
Combination therapies May be more effective than single agents 
Botulinum toxin A For focal peripheral neuropathic pain 

⚕️ Third-Line Treatments

When first- and second-line treatments are insufficient :

 
 
Treatment Description
High-frequency repetitive transcranial magnetic stimulation (rTMS) Non-invasive brain stimulation
Spinal cord stimulation Implanted device sending electrical impulses to the spinal cord 
Strong opioids Reserved when no alternative available; significant risks of tolerance and dependence 

Note on spinal cord stimulation: Recent Australian Government reviews note that evidence for comparative clinical effectiveness of SCS compared to standard care is uncertain, and there remains doubt about the magnitude of clinical effect and long-term risks .

 Treatments Not Recommended

The 2025 NeuPSIG guidelines recommended against :

  • Cannabis-based products – Found to be ineffective for neuropathic pain

  • Some treatments with inconclusive evidence:

    • SSRIs (e.g., escitalopram)

    • NMDA receptor antagonists (e.g., ketamine)

    • Implanted spinal cord stimulation (evidence insufficient)

 Cannabis-Based Medicines and Neuropathic Pain

What the Research Shows

2025 systematic review examined 22 randomized controlled trials on cannabis-based medicines (CBMs) for neuropathic pain :

 
 
Finding Details
Significant pain reduction Reported in 15 studies for conditions including multiple sclerosis, spinal cord injury, diabetic neuropathy, and HIV-associated neuropathy
No significant effect 7 RCTs observed no significant pain relief compared to placebo
Secondary benefits Some studies showed improvements in mood and sleep

Limitations of Current Evidence 

  • Small sample sizes in many studies

  • Short study durations

  • High placebo response rates

  • Trial unblinding due to psychoactive effects of cannabinoids

  • Difficulty extrapolating to chronic pain conditions

Expert Recommendations

The 2025 NeuPSIG guidelines specifically recommended against cannabis-based products for neuropathic pain, finding them ineffective .

The Auscare Store Perspective

At Auscare Store, we provide educational information only. While some patients may consider medicinal cannabis or pain killers, the current evidence base does not support its use for neuropathic pain. Patients should always consult their doctor about appropriate treatment options.

 Non-Drug Treatment Approaches

Non-pharmacological approaches are essential components of comprehensive pain management .

Lifestyle Measures

 
 
Approach Benefits
Regular exercise Releases endorphins (natural pain relievers); reduces muscle stiffness 
Balanced diet Supports overall health and nerve function
Pacing activities Breaking tasks into manageable steps to avoid pain flares 
Good sleep hygiene Poor sleep increases pain sensitivity 

Psychological Approaches

 
 
Approach Description
Cognitive Behavioral Therapy (CBT) Helps retrain the brain and develop coping strategies 
Relaxation techniques Meditation, deep breathing, hypnosis 
Pain education Understanding pain mechanisms reduces fear and improves outcomes 

Physical Therapies

 
 
Therapy Application
Physiotherapy Maintains flexibility and function
Transcutaneous electrical nerve stimulation (TENS) May help some patients 
Yoga and meditation Mind-body approaches for pain management 

Self-Management Strategies

  • Develop a Pain Flare-Up Plan 

  • Set realistic goals for activities

  • Build a support team (GP, specialists, psychologists) 

  • Be patient and persistent – changes take time 

Australian Context: PBS Medications

In Australia, several medications for neuropathic pain are available on the Pharmaceutical Benefits Scheme (PBS).

PBS-Listed Medications

 
 
Medication PBS Listing Information
Pregabalin (Lyrica®) Listed for neuropathic pain with Authority Required (STREAMLINED). Patients must meet specific criteria .
Gabapentin Available on PBS for neuropathic pain
Amitriptyline Tricyclic antidepressant, widely used for nerve pain
Duloxetine SNRI listed for neuropathic pain

Prescribing Requirements

For PBS-subsidised pregabalin, patients must :

  • Have an Authority Required prescription

  • Meet specific clinical criteria

  • Show adequate clinical response for continuation

Note: Pregabalin is not subsidised for fibromyalgia, acute pain, or chronic pain of non-neuropathic origin .

Driving and Medications

Many medications used for neuropathic pain can affect driving ability:

  • Sedation and drowsiness are common side effects of gabapentinoids and TCAs

  • Patients should not drive if affected

  • Discuss driving safety with your doctor

In NSW, driving under the influence of drugs that impair driving is illegal. Always follow medical advice regarding driving restrictions.

 When to Seek Specialist Help

Consider referral to a pain specialist or multidisciplinary pain clinic if :

 
 
Indicator Description
Declining physical function Pain interfering with daily activities
Red flags present New pain with neurological changes, autonomic dysreflexia, bladder/bowel changes
Psychological distress K10 > 19, Orebro > 50, BPI interference > 50
Medication concerns Opioid dose > 40mg morphine equivalent/day, duration > 90 days
Multiple medications Complex regimens with side effects
Poor response Pain not responding to primary care treatment

Pain Services in NSW

  • Pain killer clinics like Auscare store 

  • Tertiary referral services for complex cases 

  • Multidisciplinary pain centres offering comprehensive assessmen

Leave a Reply

Your email address will not be published. Required fields are marked *