Sarah Michelle Gellar shares sweet message about 'brave' Shannen Doherty amid cancer battle

Sarah Michelle Gellar has shared her admiration for longtime friend Shannen Doherty in a touching message praising her bravery in battling breast cancer. Sarah Michelle shared a photo of herself with the former Beverly Hills 90210 actress on Instagram on Monday (Aug. 8) along with some poignant words about their friendship.

"My #MondayMuse (and really every day #Muse) is my brave friend @theshando," she wrote. "I've always said she is one of the most loyal friends I've ever known, and now she is facing the toughest journey of her life, she is sharing it with friends she has never met in the hopes of helping other people who are going through the same struggle. That's a true friend," she touchingly added.

TAP TO VIEW GALLERYSarah Michelle Gellar and Shannen Doherty Instagram selfie Sarah Michelle Gellar shared a touching message for brave friend Shannen Doherty

Shannen, 45, was diagnosed with breast cancer in February 2015, and has been candid about her fight against the disease. Last month she documented shaving her head on Instagram, sharing six images detailing the range of emotions she experienced. She captained the final image with two hashtags which read #cancersucks and #thankgodforfriends.

Then, just last week, Shannen revealed that her cancer has spread. "I had breast cancer that spread to the lymph nodes, and from one of my surgeries we discovered that some of the cancer cells might have actually gone out of the lymph nodes," she told Entertainment Tonight. "So for that reason, we are doing chemo, and then after chemo, I'll do radiation."

Shannen cutting her hair in the mirror to prepare for shaving her head in Instagram Shannen documented the process of shaving her head on Instagram

"The unknown is always the scariest part," added Shannen, who has so far undergone three out of eight rounds of chemotherapy and had a single mastectomy back in May. "Is the chemo going to work? Is the radiation going to work? You know, am I going to have to go through this again, or am I going to get secondary cancer?

"Everything else is manageable. Pain is manageable, you know living without a breast is manageable, it's the worry of your future and how your future is going to affect the people that you love."

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