麻之法大非宜。强用须当分天时。春冬寒月犹似可。夏秋炎日切莫施。
古有 麻之说。虽近有理。然亦当分天时。如春冬严寒。麻为风寒所遏。闭而不出。 之以取
汗。使腠理开豁。犹曰可也。若夏秋炎热之时。只宜令之于无风之处坐卧。以单被盖之。勿令其冒
风冒暑耳。岂可 助。倘炎热而用 法。则火热愈甚。麻必焦紫。致变坏证。而不救者多矣。
麻证从来喜清凉。首尾不用补中方。缘何麻后议补中。为救过凉脾胃伤。
麻证属火。肺胃实热者多。虚寒者少。千人之中。虚寒者偶有其一。故治麻俱宜先用疏散寒
凉之药者。此之谓也。而古人又有议补中之说者何哉。盖指麻收之后而言。非指初热正出正收
时之谓也。缘由麻证先用寒凉之药过多。而脾胃受伤败坏。以致麻收之后。多得呕吐。泄泻青色。
唇白身冷。当审其轻重而用补中之法。所以人参、白术、白苓、砂仁、霍香、陈皮、薏苡仁、莲肉等
味。在所不忌。但当佐以清凉之药。加川黄连、枯黄芩。俱微炒而用之。夫既补中。而又加清凉之
品者。其义盖恐中气实。而邪火复作。故兼用之耳。至于白术。呕泄太甚者。用之始宜。如吐泻轻
者。则又不宜轻用。若其人素禀虚弱。当出麻之际。过于发散。出透之后。又过用寒凉解毒。以致
虚弱之极。骨瘦神疲。面无红色。且又不能多食。食多即吐者。即急以香砂六君子汤去半夏。加麦
芽、KT 石斛以补之。
香砂六君子汤
人参 白术（炒） 白茯苓 炙甘草 陈皮 半夏 木香 砂仁 水煎。空心服。
The methods for treating measles must be highly appropriate. If one insists on using a specific method, it is necessary to distinguish based on the seasonal climate. It may still be acceptable during the cold months of spring and winter, but it must absolutely not be applied during the hot days of summer and autumn.
Ancient texts have discussed "measles." Although this approach is close to reason, it too must be distinguished according to the seasonal climate. For instance, during the severe cold of spring and winter, if measles are suppressed by wind-cold pathogens, causing them to remain closed and unable to erupt, using acrid-warm methods to induce sweating, thereby opening the couli (pores), can be considered acceptable. However, during the heat of summer and autumn, it is only appropriate to let the patient sit or lie in a place without wind, covered with a single blanket, avoiding exposure to wind or summer-heat. How could one use acrid-warm methods to assist yang? If such methods are used during hot weather, the fire-heat will become even more severe, the measles rash will likely turn scorched purple, leading to complicated and deteriorating syndromes, from which many patients cannot be saved.
Measles syndromes have always favored coolness; tonifying the middle jiao formulas should not be used from beginning to end. Why discuss tonifying the middle after the resolution of measles? This is to rescue the spleen and stomach from damage caused by excessive cooling.
Measles syndromes belong to fire pathogens; there are many cases of excess heat in the lung and stomach, and few cases of deficiency-cold. Among a thousand people, deficiency-cold occurs occasionally in only one or two individuals. Therefore, the treatment of measles generally favors the initial use of dispersing and cooling herbs; this is what is meant. Then why do ancient texts propose the use of tonifying the middle jiao? This refers to the stage after the measles have resolved, not the initial fever phase when they are erupting or resolving. The reason is that if too many cooling herbs are used initially in measles treatment, the spleen and stomach may be injured and damaged. Consequently, after the measles resolve, patients often experience vomiting, green diarrhea, pale lips, and a cold body. One must assess the severity and apply the method of tonifying the middle jiao. Thus, herbs such as Renshen (Ginseng Radix et Rhizoma), Baizhu (Atractylodis Macrocephalae Rhizoma), Baifuling (Poria), Sharen (Amomi Fructus), Huoxiang (Agastachis Herba), Chenpi (Citri Reticulatae Pericarpium), Yiyiren (Coicis Semen), and Lianrou (Nelumbinis Semen) are not prohibited. However, they should be accompanied by cooling herbs, such as Chuan Huanglian (Coptidis Rhizoma) and Ku Huangqin (Scutellariae Radix), both lightly stir-fried before use. Since the middle jiao is being tonified while adding cooling agents, the rationale is likely to prevent the resurgence of pathogenic fire due to an excess of middle qi, hence the combined use. As for Baizhu (Atractylodis Macrocephalae Rhizoma), it is suitable only when vomiting and diarrhea are severe. If the symptoms are mild, it should not be used lightly. If a patient has a constitutionally weak physique, and during the eruption of measles, overly dispersing methods were used; or after eruption, excessive cooling and detoxifying herbs were applied, leading to extreme weakness, emaciation, fatigue, lack of ruddy complexion, and inability to eat much (vomiting upon overeating), one should immediately use Xiangsha Liujunzi Tang (Six Gentlemen Decoction with Aucklandia and Amomum) with Banxia (Pinelliae Rhizoma) removed, and add Maiya (Hordei Fructus Germinatus) and Shihu (Dendrobii Caulis) to tonify.
Xiangsha Liujunzi Tang (Six Gentlemen Decoction with Aucklandia and Amomum)
Renshen (Ginseng Radix et Rhizoma), Baizhu (Atractylodis Macrocephalae Rhizoma, stir-fried), Baifuling (Poria), Zhigancao (Glycyrrhizae Radix et Rhizoma Preparata), Chenpi (Citri Reticulatae Pericarpium), Banxia (Pinelliae Rhizoma), Muxiang (Aucklandiae Radix), Sharen (Amomi Fructus). Decoct in water and take on an empty stomach.