What is the meaning of the Chinese herb saxifrage followed by hypoglossia

When decocting Chinese herbal medicine, the latter means to put in sand nuts 5-10 minutes before the normal decoction of the medicine is about to be finished, in order to preserve the active ingredients of sand nuts as much as possible.
After the next is a method of decoction, generally applicable to some aromatic drugs such as sand nuts, patchouli, etc., these drugs and other drugs together when decocted, will be due to the decoction time is too long, the active ingredients are easy to volatilize and reduce the efficacy of the drug, in order to avoid such a situation, generally after the next, that is, the drug is almost ready to decoct into the drug, in order to minimize the loss of the active ingredients of the drug.
Sand nuts have the effect of dissolving dampness and moving qi, warming the middle and stopping diarrhea, and stabilizing the fetus. It is used in treating stagnant spleen and stomach qi, dampness obstructing the middle Jiao (dampness obstructing the functions of the spleen and stomach), coldness of the spleen and stomach (spleen and stomach are weak and cold), vomiting and diarrhea, restlessness of the fetus, and malignant obstruction of pregnancy (in the early stage of pregnancy, there is a heavy nausea and vomiting, dizziness and anorexia, or even vomiting when food is ingested), and so on. It should be used with caution in cases of yin deficiency and blood dryness (deficiency of yin fluid, dryness and heat in the blood).
Consultation with a doctor is recommended for specific decoction methods.