Dr. Chung advanced the idea of "hidden effect," under which acupuncture alleviates a disease through masking the symptoms, rather than effecting a real cure. Thus the ailment sometimes continues to spread undetected until it is beyond treatment.
鍾醫師認為，中國醫學是一種經驗醫學，在診斷與治療方面是以症狀診斷和症狀治療為基礎，因此，有時用針灸將症狀消除而誤認為治癒，形成了遮蓋效應，會使原有疾病潛在進行，造成不可收拾的後果。