Heating Pad Lidoderm Patch (2026)

Applying external heat—such as heating pads, electric blankets, or even sitting in a hot tub—increases blood flow to the skin and accelerates the absorption of lidocaine into your bloodstream. This can lead to:

Absorbing too much lidocaine can cause life-threatening side effects, including seizures, cardiac arrhythmias, and respiratory arrest. Heating Pad Lidoderm Patch

Because the patch numbs the skin, you may not feel if a heating pad is becoming hot enough to cause severe burns. Applying external heat—such as heating pads