Numb away your pain with the Icy Hot Max Strength Lidocaine Pain Relief Patches. These lidocaine pain patches work to give you fast-acting pain relief. That's because they are made with the maximum strength lidocaine available without a prescription. Icy Hot Lidocaine Patches target more pain receptors* and comfortably stay in place for up to 8 hours. These max strength pain relief patches are suitable to relieve pain, are easy to apply, and stay in place. *Compared to Icy Hot menthol only