Patient: When I rinsed my mouth after meals, especially at noon and in the evening, I noticed that my tongue, which was white and greasy in the middle and back of the tongue (I uploaded a photo last time), became much lighter, and some of the white greasiness receded to what appeared to be normal tongue moss. However, when I got up the next morning, I observed that the white tongue was back to its original level. Why is this? I’ve been eating rice porridge lately. Another question: Do we need to do a monthly bowel cleanse now? Is it better to use mannitol solution or senna’s? Doctor: This is because you have just eaten a meal and some of the moss floating on the superficial surface has been washed away by the diet, so the moss has become much lighter and some of the white greasy parts of it have receded to look like normal tongue moss. However, when you get up the next morning and observe it, it is back to the original white greasy level. This is because the spleen deficiency has not changed, so the white greasiness returns to the original level when you wake up the next morning. You can continue to eat Coix rice porridge or barley soup. Show me your tongue in the next class. You can cleanse your intestines once a month or once a week, but I advocate dietary therapy to cleanse your intestines. I disagree with whether it is better to use mannitol solution or senna, because after all, it is a medicine that can be used for illness, and it is not necessary to choose them for health care.