Hi Ruey. I'm a great believer in Traditional Chinese Medicine (TCM). My wife is ethnic Chinese from Singapore and I'm Caucasian. She's used TCM to help a number of people in my family, who now also swear by it. My dad, for example, suffered from COPD. His doctor told him he would have to have oxygen with him all the time. Needless to say, he was rather depressed by that prospect. My wife talked to an herbalist who gave her a recipe for some soup. He took that a few times and when he returned to the doctor for another checkup, the doctor said, "I don't know what you're doing, but keep doing it. You don't need any oxygen at all." That made him a believer.
If you live in an area with Chinese herb stores, go ask them. You can also Google Traditional Chinese Medicine for kidney disease.
I honestly don't know how effective the TCM treatments are. With my dad, I think there was some therapeutic value to the herbs he drank, but I think just as much of his improvement was psychological, kind of a placebo effect. He thought it would work for him, so it did.