In every period of time, people have been watching nature to discover natural rules. The knowledge of the ancient Chinese has been traded so exactly, that we still use some recipes that are 2000 year old to cure our patients. Even though some ingredients might have changed and the dosage has been adapted to our needing, the principles of diagnosis and treatment are still the same.
TCM is only one part of a philosophy. Even in today's use, the treatment is always connected to the exterior and interior conditions of a person. TCM can treat many "civilisation-diseases" as mood-disorders, digestion-problems and allergies, about which the Western medicine doesn't know too much. TCM-Therapy has different aspects: It is lifestyle-medicine, it is dietary medicine and it offers Chinese herbs as infusion or granulates.
Though there are many diseases that can be treated successfully with TCM, there is also an end of eastern and western medicine. Unfortunately, some diseases cannot be cured yet. In a case like this, I would not want to suggest a miracle but I do want you to know that with some help from outside, a human body can arrange itself with a disease.
This leads to a much better quality of life with less pain. Even though we cannot promise a cure to everything.