MUNICH - Former president Gloria Arroyo has arrived here for four days of stem cell treatment to ease the pain from a degenerative bone disease.

It was the first time that Arroyo, now a member of the House of Representatives, was able to travel outside the country in four years. She was released from detention in June after the Supreme Court effectively dismissed corruption charges against her.

"I am very grateful to President Duterte that he has allowed the process to take place in an objective way. That's the reason why I am free now," Arroyo told ABS-CBN News.

"Of course I want to do what I can do in order to support his administration and that is through legislation," she added.

Arroyo refused to comment on controversies surrounding Sen. Leila de Lima, who pursued criminal charges against her as justice secretary.

"I have no rancor over any individual. What I am against is the system of using the justice system to oppress political enemies," she said.

Arroyo's foreign trip is expected to last for two weeks as she is also set to speak before different international organizations across Europe.