Credit: Gabriel Olsen/FilmMagic

Shannen Doherty isn’t fighting breast cancer alone.

The Beverly Hills, 90210 alum shared a new selfie of her supportive squad on Instagram Monday after walking fans through the emotional process of shaving her head.

“Thank you to these three who helped me thru an impossibly tough day and continue to be there every minute supporting and loving me,” Doherty, 45, captioned her latest photo featuring her mother Rosa Elizabeth and friends Anne Marie Kortright and Chris Cortazzo.

Though husband Kurt Iswarienko was out of town, the actress said she was “in good hands.”

Doherty revealed to PEOPLE exclusively about her illness in August 2015, months after she was first diagnosed in March of that year.

The star’s fans have been flooding her social media accounts with well wishes and prayers. Many continue to comment with hashtags such as #CancerSucks and #ShandoArmy.