Dit Da Jow?

Does Dit Da Jow really work? Why is there no western equivalent, how does the MMA argue with real testable results? And why isnt it sold OTC at walmart if it is so effective? I read a few articles on it yesterday but I still dont understand, it must dilate blood vessels to promote circulation and healing but so does heat. They always say ICE for inflammation and then heat later after the area stops swelling. Are good recipes available or is that all secret/pseudo secret too?