Yunzhi Essence to Improve the Quality of Life of Patients With Advanced Stage of Cancer

Inclusion Criteria: * Diagnosed with advanced cancer according to the definition from American Cancer Society; * According to the experience of the doctor, by using Palliative Prognostic Index (score\>4), integrated with past cases and professional knowledge judged to have life expectancy not less than six months to two years; * Abbreviated mental test (AMT) score of 6 or above; * Voluntarily participate in this clinical trial and sign the informed consent form (acceptance of close relatives signed informed consent on behalf of the patient); * Refer to the national standard for Clinic terminology of traditional Chinese medical diagnosis and treatment-Part 2:Syndromes/patterns, syndrome of "damp heat spleen" and "spleen deficiency with water stop" (Fulfill 2 of the main symptoms and 2 of the secondary symptoms). Exclusion Criteria: * Patients with a history of allergy to traditional Chinese medicine or Yunzhi; * Patients who required nasal feeding or difficulty swallowing; * Patients with comatose/semi-conscious, cognitively impaired with dementia/confusion, physically too ill with extremely poor general condition, or there was a language barrier.