Clinical efficacy study of pricking and cupping therapy intervention on Stage II breast cancer-related lymphedema after surgery

INTERVENTION: Observation group:Bloodletting and Cupping;Pressure therapy;Skin care;Control Group:Pressure therapy;Skin care; CONDITION: lymphedema PRIMARY OUTCOME: Circumference Difference Rate of Affected Side; SECONDARY OUTCOME: Skin and subcutaneous tissue thickness;Skin and subcutaneous tissue hardness;Breast Cancer Lymphedema Symptom Inde X(BCLE‐SEI) Scoring System;Upper Limb Function DASH Score Evaluation;Upper Limb Lymphedema Quality of Life (ULLQoL) Scale Scoring; INCLUSION CRITERIA: 4.1 Women patients who have undergone unilateral breast cancer surgery. 4.2 Those who meet the diagnostic criteria for BCRL. 4.3 BCRL is staged as Grade 2 according to the ISL staging system. 4.4 Age >18 and <80 years old. 4.5 Voluntarily participating in this study, signing the informed consent form, and having the ability to comply with the treatment plan, examinations, and follow‐up.