3) Lidoderm patches are patches with topical lidocaine, which works as a pain reliever.
Lidoderm can work for low back pain among other things.
Lidoderm, unlike Flector patches and Voltaren gel, is not a topical anti-inflammatory but rather a numbing medicine applied to the skin.
4) An over the counter option, though not as well studied, is Aspercreme cream, which is a topical salicylate (aspirin) pain reliever. It works by reducing swelling and inflammation in the muscle and joints.