How long does the pain relief from capsicum plasters last and how should they be used?

The pain relief from capsicum plaster typically lasts up to 8 hours per application. These plasters work by delivering capsaicin, the active compound in chili peppers, which depletes substance P (a pain-signaling neurotransmitter) and creates a warming counterirritation effect. For optimal results, they should be applied daily to clean, dry skin over the affected area until pain subsides. Their drug-free mechanism makes them suitable for various pain types, including musculoskeletal discomfort and arthritis.

Key Points Explained:

1. Duration of Pain Relief

   • Capsicum plasters provide up to 8 hours of relief per application due to capsaicin's dual action:
     • Substance P depletion: Gradually reduces pain signal transmission.
     • Counterirritation: The warming sensation distracts from deeper pain.
   • Relief duration may vary slightly based on individual sensitivity and pain severity.

2. Proper Application

   • Daily use is recommended for sustained benefits. Apply to:
     • Clean, dry skin (avoid broken or irritated areas).
     • The exact painful spot (e.g., lower back for lumbar pain).
   • Continuous use until pain improves, typically over days or weeks.

3. Mechanism of Action

   • Capsaicin targets substance P, depleting it over time to dampen pain perception.
   • The localized warmth acts as a counterirritant, redirecting neural focus from chronic pain.

4. Ideal Use Cases

   • Effective for:
     • Muscle/joint pain (e.g., arthritis, neck/shoulder tension).
     • Sports injuries or strains.
   • Avoid near eyes/mucous membranes due to capsaicin’s irritant properties.

5. Safety & Considerations

   • Non-drug therapy: Suitable for patients avoiding oral analgesics.
   • Mild burning/redness may occur initially; discontinue if severe.
   • Patch adhesion improves on hairless skin—trim if necessary.

For persistent pain, consult a healthcare provider to assess whether capsicum plasters align with your treatment plan. Their natural approach complements therapies like heat packs or gentle stretching.

Summary Table:

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