Treats cold pathogen invading the five zang organs, presenting with locked jaw (trismus), rigid limbs, aphonia (loss of voice), or sudden syncope and dizziness, with cold extremities.
Ganjiang (Paeoniae Radix Alba, processed by frying) [Note: Ganjiang is Zingiberis Rhizoma], Fuzi (Aconiti Lateralis Radix Praeparata, processed by frying, skin and umbilicus removed), Gancao (Glycyrrhizae Radix et Rhizoma, honey-fried). All in equal proportions.
Crush the herbs. Take 4 qian per dose, add 1.5 sheng of water and 5 slices of fresh ginger, decoct until 0.7 sheng remains, strain, and take warm before meals. If accompanied by wind causing numbness and lack of sensation,
add Fangfeng (Saposhnikoviae Radix).

The reason why the pulse is deficient in heatstroke (Zhongshu) is that heat damages qi but not the physical form. Moreover, summerheat in heaven is heat, on earth is fire, and in the human body's zang organs corresponds to the Heart.
Therefore, summerheat pathogen affects the Heart, causing fever and headache, resembling Taiyang disease (Shanghan), but distinguished by aversion to cold in the back and a greasy complexion. In severe cases, it leads to collapse and unconsciousness, slightly cold hands and feet, restlessness, thirst, dry mouth, vomiting or diarrhea, wheezing or abdominal fullness; all these are caused by summerheat. Generally, when suffering from summerheat-induced confusion, one must absolutely avoid giving cold water or lying on cold, damp ground; exposure to cold will lead to death. Only warm nourishment should be used: soak cloth in hot water and apply as a hot compress to the navel (Shenque) and Qihai acupoint, or scoop hot soil to circle the navel, then urinate upon it. Wait for gradual recovery, then slowly administer rice soup, followed by syndrome-specific treatment. Recently, in Jiangsu and Zhejiang regions, many cases of summerheat present with convulsions and loss of consciousness, which have been frequently observed. Medical classics state that the pulse is floating and deficient; floating indicates wind, deficient indicates summerheat. This is summerheat combined with wind injury, hence these symptoms, commonly named "Summerheat Wind" (Shufeng). If treated as epilepsy (Jingxian), it often results in untreatable conditions. In emergencies, dissolve Suhexiang Wan (Styrax Pills) in warm water and administer. Wait for the appropriate time...

Treats latent summerheat and cold injury, where both pathogens interact, causing epigastric stuffiness and discomfort, or headache and nausea; treats all such cases.
Xiaoshi (Natrii Nitratis Crystal), Liuhuang (Sulfur). Equal parts.
Grind into powder. Stir-fry in a silver or ceramic vessel over mild to moderate heat until goose-yellow, then grind finely. Use glutinous rice paste to make pills the size of sophora seeds. Take 40 pills per dose, swallowed with newly drawn cool water, at any time.

Treats latent summerheat and cold injury, imbalance of cold and heat, dry mouth, restlessness, and thirst.
Huangdan (Minii Oxidum Rubrum), Badou (Crotonis Fructus). One tael and one fen of Huangdan; twenty-five seeds of Badou, skin and heart removed.
Grind together uniformly. Mix with melted yellow beeswax to form pills the size of sophora seeds. Take 5 pills per dose, soak briefly in cold water, then swallow with newly drawn cool water.