Numb away tough muscle pain, joint pain, back pain and more with the pain-fighting power of lidocaine. Aspercreme Odor Free Max Strength Lidocaine Pain Relieving Liquid is formulated with 4% lidocaine, the maximum amount allowed without a prescription. Simply roll it on the site of pain and start feeling the relief in minutes. This max-strength pain relieving liquid also targets more pain receptors than counterirritant pain relievers