Perhaps. Whenever one of my patients wants to use natural or alternative therapy for a problem. I always ask them to show me exactly what it is they are taking. Some things may help, some things may really do nothing at all, but some things may have bad side effect when combine with other medicines. Your doctor can cross check your alternative medicines with whatever they order.
What is natural/ Chinese therapy? I am not aware of any controlled clinical trials assessing the efficacy of "natural/chinese therapy", therefore I am not able to provide an informed opinion. It is very important to seek traditional care at the earliest since pancreatic cancer has a high mortality rate.