Lidocaine patches deliver local anesthetic (a numbing agent) directly through the skin to a targeted area of pain. They are commonly prescribed after surgery for localized nerve or muscle pain when oral medication alone is not enough.
How Lidocaine Patches Work
Lidocaine is a local anesthetic that blocks pain signals in the nerves directly beneath the patch.
The patch releases lidocaine slowly through the skin over 12 hours, providing continuous localized relief.
Unlike oral pain medication, lidocaine patches do not enter the bloodstream in significant amounts, which means fewer systemic (whole-body) side effects.
The brand Lidoderm is FDA-approved for postherpetic neuralgia (nerve pain after shingles). Surgeons frequently prescribe it off-label for localized post-surgical pain.
Lidocaine patches do not treat inflammation. They are most effective for nerve-related or surface-level pain rather than deep surgical pain.
How to Apply the Patch Correctly
Apply to intact, dry, clean skin at or near the area of pain. Do not apply over broken skin, rashes, or surgical incisions unless specifically directed by your provider.
Wear the patch for up to 12 hours in any 24-hour period. Remove for the remaining 12 hours to allow skin recovery.
You may cut the patch to a smaller size to fit the area. Cut before removing the backing.
Press firmly and smooth edges to ensure full contact with the skin.
Wash hands after handling the patch. Avoid touching eyes.
Rotate application sites if using patches daily to prevent skin irritation.
Safety and Precautions
Do not apply more than 3 patches at one time or wear them longer than 12 hours per day.
Avoid exposing the patch to heat sources such as heating pads or electric blankets, which can increase drug absorption to unsafe levels.
Tell your provider if you take anti-arrhythmia heart medications, as lidocaine may interact with them.
Skin redness or mild irritation at the application site is common and usually fades after removal.
Seek immediate care if you experience confusion, seizures, blurred vision, or irregular heartbeat. These are signs of systemic lidocaine toxicity, which is rare but serious.
Dispose of used patches by folding sticky sides together and placing in trash out of reach of children and pets.
What to Expect During Use
Most patients notice reduced pain within 1 to 4 hours of applying the patch.
Lidocaine patches are typically used alongside oral pain medication, not as a replacement for it.
They are most helpful during the phase of recovery when nerve sensitivity and surface-level pain are prominent.
Your provider may taper you off the patches as healing progresses and oral medication doses decrease.
If the patch is not providing adequate relief after several days of use, contact your provider to reassess your pain management plan.
Avoid submerging or soaking the patch. Brief showers are generally fine, but keep the patch area as dry as possible. Remove the patch before bathing or swimming and apply a fresh one afterward if still within the 12-hour window.
Will the lidocaine patch make the area completely numb?
Usually not. The patch reduces pain intensity rather than causing complete numbness. Most patients describe a dulling of pain rather than full loss of sensation in the area.
Can I cut the lidocaine patch to cover a small area?
Yes. Patches can be cut to size before the backing is removed. This is a common practice and does not reduce the effectiveness of the medication per square centimeter applied.
What should I do if my skin becomes irritated under the patch?
Remove the patch, gently clean the area, and rotate to a different site. If irritation is severe, blistering, or does not resolve within 24 hours, contact your provider. You may need to discontinue patch use.
For patients
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This guide provides general information. For instructions tailored to your specific procedure, ask your provider about QR Rx care plans.
These medication guides are for educational purposes only and do not replace medical advice. Always follow your healthcare provider's specific medication instructions.
