This is a very common sense problem, we have eaten dried seafood products such as sea cucumber, dried fish and other dry products know the importance of water hair, Chinese medicine is also dry products, if not soaked in water through, (soak the water can not be not, because the process of soaking medicine will be part of the drug precipitation in the water, pour out is to pour out part of the drug) then the active ingredients inside the decoction is not out, will affect the therapeutic effect, some people say: that I decocted for a long time is not good, wrong! Long decoction is out of the active ingredients, but also the fire into the medicine, fire into the body will also affect health and disease to heal.