I have mixed feelings. Using dit dar jow seemed helpful.... but is there any good evidence that it is really better than other linaments? And how much of the results come from the method of application, including the regular resting from striking to massage in the jow? There are so many recipes. Who even knows what's in it or how the stuff works. And then, what about the very real "placebo effect". Unless you are very credulous, a lot of questions pop up.
I used to have a more trusting attitude and respect for traditional Chinese medicine. But have you ever checked out all the superstitious and harmful garbage that's mixed in along with the good? How about the marketing of pieces of endangered animals for supposed curative effects in traditional Chinese herbalism? You know, stuff like rhino horn and tiger penis as aphrodesiacs. Then, there's also the excessively secretive nature of many herbalists. Yeah, it may be a cultural thing, but it makes for unreliable medical practice. In fact there's no way for the average martial artist to know if he's got something useful or just "snake oil". Don't tell me to, "Just try it and you'll know the difference." It's not that easy.
So what's a poor CMA guy to do? As for myself, I'll continue to use the stuff when I can get it, but don't count on me for wide-eyed and glowing testimonials. I'd like to see some science behind what works.