According to the theory of traditional Chinese medicine, excessive sweating under the armpit may be a sign of deficiency of heart yin. Heart yin represents the nutrition and nourishment of the heart, and it maintains the normal function of the heart together with heart yang. Deficiency of heart yin may affect the heart's nourishment and nutrition, leading to problems in the heart's function, such as irritability, palpitation, insomnia, dry mouth, dreaminess and so on, and may also lead to excessive sweating.
The treatment of heart-yin deficiency is mainly to nourish yin to reduce fire and restore the balance of heart-yin This is usually achieved by traditional Chinese medicine, dietotherapy, acupuncture and moxibustion. Specific treatment methods should be formulated by doctors with knowledge of traditional Chinese medicine according to everyone's physique and illness.
根据中医的理论，腋下出汗过多可能是心阴不足的表现。心阴代表着心脏的营养和滋润方面，它与心阳共同维持心脏的正常功能。心阴不足，心脏的滋润和营养可能就会受到影响，导致心脏的功能出现问题，表现为烦躁、心悸、失眠、口燥、多梦等症状，同时也可能导致出汗过多。
心阴不足的治疗主要是滋阴降火，恢复心阴的平衡。这通常通过中药，食疗，针灸，以及艾灸等方法来实现。具体的治疗方法应由具备中医知识的医生根据每个人的体质和病情来制定。
