The usual dose is 6 grams each of Chai Hu, Paeonia lactiflora, Glycyrrhiza glabra, Citrus aurantium, but in the clinic, the dose needs to be increased or decreased by the physician according to the condition or increase or decrease the combination of drugs. If you need to use the drug, it is recommended to use under the guidance of a doctor, do not unauthorized use of drugs. Sihui San is from “The Treatise on Typhoid Fever”, with the effect of penetrating the evil spirits and relieving depression, dredging the liver and regulating the spleen. It is mainly used for treating the symptoms of Yang depression and syncope (poor circulation of Yang qi leading to cold limbs), such as lack of warmth in the hands and feet, abdominal pain, and heaviness in the lower part of the body, or the symptoms of Liver and Spleen qi depression, such as distension and congestion of the ribs, pain in the epigastric region, and a stringy pulse. If accompanied by cough, Fructus Schisandrae chinensis and Ginger can be decocted together to warm the lungs and disperse cold to relieve cough. For patients with dysuria (irregular urination), Poria can be added to diuretic. For patients with pain in the abdomen, add Ganoderma lucidum to disperse cold in the interior. If you are not feeling well, it is recommended to use it under the guidance of doctor’s diagnosis, do not use medicine without authorization, so as to avoid delay.