Dolly Parton secretly traveled to Germany for an experimental cancer treatment approximately a year before her death. The country music legend reportedly flew to Frankfurt on a private jet to undergo the treatment, according to TMZ, though it’s unclear exactly what the procedure entailed. Insiders told the outlet she remained in Germany for about a week before returning home and she believed the treatment helped restore her strength. A rep for Parton didn’t immediately respond to Page Six’s request for comment. As Page Six previously reported, the legendary singer died on Aug. 25 following a secret cancer battle. She was 80. Her sister…









