"The pain level was really the hardest thing," Newton-John told the news program, according to Entertainment Tonight. "I was trying to do shows and it was pretty agonizing."
She shared that she has been using medical marijuana grown by her husband John to ease the pain, as well as undergoing herbal and photon radiation therapies.
Newton-John had undergone chemotherapy and a partial mastectomy back in 1992 and had thought she beat the cancer.
Most recently, the struggle is just trying to getting around.
"I can walk, but I can't go long distances," she said during the TV interview. "But I'll get there, because I couldn't walk at all a month or so ago. As I heal I'll be able to walk more."
The singer canceled her tour dates for June after learning she had cancer once again.
She now said she's focused on getting better, because she has "lots to do.Read more at NYDailyNews