Diclopro gel is the strongest topical analgesic to relieve muscle pain. Diclopro is a topical gel for more flexible muscles and is considered one of the best analgesics for mild to moderate pain in the muscles, bones, and joints. Diclopro gel contains diclofenac diethylamine, which has an anti-inflammatory effect, so it is used to relieve pain resulting from inflammation. It has an anti-inflammatory and pain-relieving effect.