“…A 2016 Cochrane systematic review on topical NSAIDs for chronic musculoskeletal pain was included [ 16 ]. This review was updated with an additional 42 studies: 14 compared to placebo [ 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 ], four compared to oral NSAIDs [ 84 , 85 , 86 , 87 ], five compared to topical NSAIDs [ 88 , 89 , 90 , 91 , 92 ], and 19 compared to other topical drugs [ 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 ].…”