Exploring the Treatment of Chronic Urticaria with Lung-Spleen Qi Deficiency Type Induced by Long COVID Using Yupingfeng Powder Based on the “Fufeng” Theory

新型冠状病毒感染(COVID-19)引发的系列后遗症日益受到医学界的重视，世界卫生组织(WHO)将感染新冠病毒三个月后持续存在、逐渐发展的新症状，或病程超过两个月且无法用其他病因解释的症状，统称为“长新冠综合征”(Post-COVID-19 Condition)。长新冠致荨麻疹是指COVID-19康复后发生的慢性荨麻疹(CU)，表现为风团、瘙痒反复发作。文章旨在探讨“伏风”理论在长新冠致CU中的解释、应用及治疗方面的独特优势。“伏风”理论认为，“风邪内潜、正虚邪伏”是长新冠致CU的主要病机特点，其病因与“肺脾两虚、卫外不固”密切相关，治宜补益肺脾、祛风固表，在此基础上选用玉屏风散能达到良好的疗效。The series of sequelae triggered by the novel coronavirus infection (COVID-19) is increasingly gaining attention in the medical community. The World Health Organization (WHO) refers to the new symptoms that persist and gradually develop three months after infection with the novel coronavirus, or symptoms that last more than two months and cannot be explained by other causes, collectively as “Post-COVID-19 Syndrome”. Long COVID-induced chronic urticaria (CU) refers to the recurrent episodes of wheal and itching that occur after recovery from COVID-19. This article explores the unique advantages of the “Fufeng” Theory in explaining, applying, and treating CU caused by long COVID. The “Fufeng” Theory posits that “internal lurking wind evil and weak body resistance with latent evil” are the main pathological characteristics of CU caused by long COVID. Its etiology is closely related to “a deficiency of both the lung and spleen, and weak defensive qi”, and the treatment should focus on unifying the lung and spleen, dispelling wind, and strengthening the exterior. Based on this, using Yupingfeng powder can achieve good therapeutic effects.