Back pain is a health concern for most people in the United States at some point in their lives and one of the most common reasons people miss work or visit the doctor. More than 80 percent of Americans will experience low back pain, and this health problem costs the United States over $100 billion each year, most of which is a result of lost wages. 
Music therapy is a low-cost natural therapy that may reduce some of the stress of chronic pain in conjunction with other treatments. Studies find that it may reduce the disability, anxiety, and depression associated with chronic pain. It is thought to help because it can shift attention away from the unpleasant sensations of pain, and it may cause the release of endorphins or changes in catecholamine levels.
Also, many painful factors in neck, back and muscle pain are deep inside the body — probably much deeper than Voltaren® Gel can “reach.” For instance, if your low back pain is coming from the facet joints — small joints deep in the spine, under a thick layer of muscle — chances are that a topical treatment simply doesn’t stand a chance of having an effect.

Hi Bob, Naproxen is an anti-inflammatory (NSAID) that is working from the inside, so ideally you want a cream or gel that works in a different way to gain opimum benefits (otherwise I would recommend Voltarol Pain Relief Gel which contains another NSAID called diclofenac). Movelat contains salicylic acid, which is a weaker NSAID than Naproxen so it may not provide much additional relief. I find Celadrin cream works well. Hope your pain improves soon. Best wishes, Sarah B
Chondroitin sulphate chains bind to hyaluronic acid to form ‘springy’ molecules that increase the strength and elasticity of cartilage, making it more resilient. Chondroitin also acts as a signal to inhibit the enzymes responsible for breaking down cartilage, and to increase the production of collagen. Chondroitin is therefore an ideal complement to glucosamine and the two are often combined in joint and muscle pain relief creams.
What makes a joint “amenable”? Is it mellow and easy-going? No, just accessible: a pain-killing gel is useful only for joints that aren’t covered by a thick layer of muscle (like the shoulder). The medication gets diluted as it penetrates deeper into tissue, and a meaningful amount can only get into joints if the joint is just under the surface of the skin.
Traditional wisdom says that NSAID pain relievers only damage your gut lining if you take them every day for a long time, but recent research disagrees. High-level athletes with stress-related intestinal damage tried taking ibuprofen to improve muscle soreness and recovery. Ibuprofen ended up damaging their gut lining even further after just a couple weeks; it increased inflammation and made their original pain issues worse.[3] In fact, a single dose of aspirin can significantly increase your intestinal permeability.[4]