Xiao Qing Long Tang is formulated with Ephedra, Paeoniae Alba, Sinensis, Dry Ginger, Radix et Rhizoma Glycyrrhizae Praeparata, Cinnamon Branches, Fructus Schisandrae Chinensis, and Semen Heterophyllum. Xiaoqinglong Tang has the effects of relieving epidemics and dispersing cold (removing cold from the surface of the muscles), warming the lungs and resolving beverages. Among them, Ephedra and Gui Zhi are pungent and warm, which can relieve the surface symptoms of wind-cold by warming and dispersing the cold; Gan Jiang and Xin Xin can warm the lungs to dissolve the watery drinks in the lungs; Fructus Schisandrae chinensis can astringent the lung qi to stop cough; Paeonia lactiflora can nourish the blood; Semen xia can dry the dampness and dissolve the phlegm (to dispel phlegm by using dampness-drying medicines); and Roasted Glycyrrhiza can harmonize the various medicines. This formula is mainly used in treating the symptoms of external wind-cold and internal water-drinking, manifesting as malignant cold and fever, no sweating, head and body pain, coughing and wheezing, sputum and saliva, dryness and vomiting, or body pain and heaviness, swelling of the head, face and limbs, or tightness in the chest and wheezing, not being able to lie down, with a white slippery coating on the tongue and a floating pulse, etc. This formula is strong in pungency and dispersion. This formula is strong in pungency and dispersal, and should be used only after accurate diagnosis, and the dosage should be increased or decreased according to the patient’s physical strength; it is not suitable for those with phlegm-heat, yin-deficiency and dry cough without phlegm. If the patient has any discomfort, please go to a regular medical institution for consultation; if Xiaoqinglong Tang is needed, it must be used under the guidance of a professional doctor.