Shannen Doherty has some great news to share.

The actress, who was diagnosed with breast cancer in 2015, revealed Friday that her cancer is in remission.

“Moments. They happen. Today was and is a moment,” the former “Beverly Hills, 90210” star wrote on Instagram. “What does remission mean? I heard that word and have no idea how to react. Good news? YES. Overwhelming. YES. Now more waiting.”

Doherty, though, remained cautious as she decides on further treatment and what challenges could lie ahead.

“As every single one of my fellow cancer family knows, the next five years is crucial,” she added. “Reoccurrences happen all the time. Many of you have shared that very story with me. So with a heart that is certainly lighter, I wait. In the meantime, decisions. Reconstruction which is several surgeries. Decision on taking a pill for the next five years that comes with its own set of problems and side effects. I am blessed, I know that. But for now.... remission. I’m going to just breathe.”

Doherty, 46, has chronicled her cancer treatments and progress on social media. In November, she posted a photo on Instagram from her first day of radiation treatment. “Radiation is frightening to me,” she wrote below the image. “Something about not being able to see the laser, see the treatment and having this machine moving around you just scares me.”

Just this past week, she shared a picture showing how her hair has started to grow back following cancer treatment. “Live life to the fullest,” she said. “Cherish every second. Love fiercely. And thank God for every second. I’ll keep you all posted and thank you for your positive energy and prayers. and yes.... that is a puff ball on top of my head. Just happy it’s growing!!”