Hello, in Chinese medicine, oral administration refers to the method of adding drugs into liquid medicine or water and mixing them evenly. This method is generally used for coarse powder of traditional Chinese medicine. If there is residue in the bowl after oral administration, add water and stir again before eating together. Prescriptions refer to more expensive drugs such as rhinoceros horn, antelope horn, antler, bezoar and cinnabar. Fine powder needs to be prepared separately before prescription. After decocting the decoction, take a small amount of the decoction, mix it with the fine powder evenly, and then take the rest of the decoction, instead of drinking it after decocting it with Chinese medicine, as you said in your question. If we want to strictly distinguish between the two methods, there are the following differences: First, the difference between the powder of traditional Chinese medicine used is that the powder of traditional Chinese medicine taken orally is generally not high in requirements and can be thicker. There may be residues after oral administration, which can be taken again. However, the oral Chinese medicine powder requires higher requirements, generally requiring finer powder, so it is easier to dissolve in soup. Of course, if there is residue in the bowl after oral administration, you should take it again. Secondly, the difference between the relationship between powder and water quantity is that the water quantity is generally not limited by oral administration. As long as the powder can be diluted and imported, the water quantity required for oral administration must be greater than the powder dosage, and basically the powder can be dissolved; Third, the difference between adding water in sequence is generally to put the powder into the bowl first, then add water or soup, and put the water or soup into the bowl first, then add the powder, and the opposite is true. I hope my answer can help you and wish you good health.