Because you are an old wound, it can't be cured by external use alone, but by internal use and external use. Yunnan Baiyao tincture can be taken orally and externally, treating both the symptoms and root causes! Yunnan Baiyao is an authority in orthopedics and traumatology all over the country. You can also call Yunnan Baiyao Company at 800-889-5599 for free consultation!