Desensitizes aggravated nerves. Fast-acting, and targets more pain receptors. Can be used for target relief of the back, neck, shoulder, knee, elbow, hand, wrist, foot, ankle, and leg. Max strength Lidocaine without a prescription. From the number 1 odor free brand!4% LidocaineDesensitizes Aggravated NervesFast ActingTargets More Pain ReceptorsNo Mess Applicator Keeps Hands Clean!