Persistent Low-Grade Fever in a Teenager: A TCM Case Study

⚠️ For educational purposes only. Individual case — results may vary. Not medical advice. Consult a qualified healthcare professional before making health decisions.

Article 4: A Teenage Girl’s 20-Day Lingering Low Fever

Article 4: A Teenage Girl’s Lingering Low Fever

Introduction: A Low Fever That Would Not Break

A teenage girl had been tormented by a low-grade fever persisting after a cold for more than twenty days. Her temperature hovered around 37.5°C (99.5°F) — not high enough to put her in bed, but enough to leave her listless and fatigued. All tests came back normal. Antipyretics brought her temperature down temporarily; once they wore off, the fever returned. A TCM doctor prescribed heat-clearing herbs — two doses, no effect. Then another physician prescribed the simplest possible formula: Guizhi Tang, just five herbs. In this case, the fever reduced after the first dose, and symptoms improved after two doses, with no recurrence reported during follow-up.

TCM Perspective: Unresolved Surface Pathogen, Disharmony of Ying and Wei

Root cause: Conventional treatments such as antipyretics and antibiotics were used, which may help manage symptoms, though some cases of cold are viral in nature. From a TCM perspective, the pathogen may not have been fully resolved and could remain at the surface level, contributing to disharmony of Ying and Wei: spontaneous sweating, sensitivity to wind, low-grade fever, and fatigue.

Why did heat-clearing herbs fail? The girl’s pathogen was at the surface, not in the interior. Her low-grade fever, mild wind sensitivity, and sweating were signs of Wei Qi deficiency — not interior heat. Her tongue was pale-red with thin-white coating. Clearing interior heat when the pathogen is on the surface is like searching inside the house for a thief who is in the courtyard.

The Formula: Guizhi Tang — A Traditional Formula Used in This Case

• Guizhi (Cinnamon Twig) 10g: warms the channels, releases the exterior, disperses the lingering pathogen.

• Bai Shao (White Peony) 15g: nourishes blood, astringes Ying qi, prevents excessive sweating.

• Sheng Jiang (Fresh Ginger) 9g: warms the middle, assists Guizhi in releasing the exterior.

• Da Zao (Jujube) 4 pieces: tonifies the center, nourishes the spleen and stomach.

• Zhi Gan Cao (Honey-fried Licorice) 10g: harmonizes all herbs, supplements Qi.

Administration: According to classical TCM instructions, this formula is traditionally taken warm, followed by a small bowl of hot rice porridge, and rest under a blanket to encourage a mild, gentle perspiration. Please follow the guidance of your TCM practitioner for administration. Guizhi Tang is traditionally used to support the body’s natural regulatory balance — helping it respond appropriately rather than forcing a fixed outcome.

本文为真实个案教育分享，个案结果不代表普遍疗效，不构成医疗建议或诊疗方案。如有健康问题，请咋询合格医疗专业人员。

第篇：少女低热不除案

第篇：少女低热不除案

引子：二十多天退不掉的低烧

花季少女，被一场感冒后的低热折磨了二十多天。体温每天在37.5℃左右徘徨，不至于卧床不起，却让人精神萍靡、倦怠乏力。各种检查结果都正常，找不出原因。吃了解热镇痛药，体温暂时降下来，药效一过又升回去。中医也看了，开了清热解毒的药，吃了2剂，没有效果。后来一位中医开了一个简单得不能再简单的方子——桂枝汤，仅仅5味药。据本案记录，服一剂后热退，2剂服完，所有症状消失，追访未再复发。

中医的眼光：外邪未尽，营卫失调

病因分析外感邪未尽解： 现代医学的处理方式：解热镇痛药强制降温，抗生素杀灭细菌（但感冒多由病毒引起）。这种治疗表面上把体温降下来了，但邪气并没有真正排出体外，而是邪恋肌膆邪气滞留在肌肉、皮肤之间，进退不得。导致营卫失调：自汗、怕风、低热、倦怠乏力。

为什么清热解毒药无效？ 这位少女的病，邪气在表（肌肤之间），不在里：低热，不是高热；微恶风（还有表证）；汗出是因为卫气虚，不是里热；舌质淡红、苔薄白（不是热象）。邪在表，却用清里热的药，当然无效。

古方今用：桂枝汤五味药，两剂愈

• 桂枝 10克： 温经散寒，解肌发表，通阳化气。

• 白芍 15克： 养血敛阴，柔肝缓急，和营止汗。

• 生姜 9克： 温中散寒，助桂枝解表。

• 大枣 4枚： 补中益气，调和脾胃。

• 炙甘草 10克： 调和诸药，缓急止痛，益气补中。

服法： 温服，喝完药后喝一小碗热粥，盖上被子遍身漬漬微似有汗者益佳，不要大汗淋漓。桂枝汤不是简单的止汗药或发汗药，而是调和营卫的方剂，恢复身体的自我调节能力。