Shannen Doherty thanks her mother for her support during her cancer battle

Shannen Doherty has thanked her mother for her support during her cancer battle.

The 45-year-old actress – who was diagnosed with breast cancer in February 2015 and revealed recently it has since been detected in her lymph nodes – has penned a heartfelt message to her mother Rosa on social media for being "so strong" throughout her fight against the disease.

The former ‘Beverly Hills, 90210’ star posted a black and white photograph of her laying on her parents lap alongside the caption: "Sometimes there’s nothing like a mothers love to help get you thru. Thank you mom for always being there and being so strong for me. I love you. #mamarosa #cancersucks #fightlikeagirl (sic)."

And the ‘Charmed’ star – who is married to Kurt Iswarienko – has revealed her chemotherapy treatment is beginning to take its toll on her.

Speaking previously, she said: "Each persons cancer journey is different. For me, chemo has been terrible and believe me, we have tried almost everything.

"So days like this have become a bit of the norm. I’m learning that it’s ok to fall into bed and give in to the exhaustion or nausea or aches. I’ve learned a lot of that thru all the beautiful people who have shared their personal stories with me right here on Instagram.

"Thank you. Btw, it doesn’t hurt to have #msbowie comfort me So back to my nap. Thank you for your prayers, well wishes and stories. They help so much. #blessed by #mamarosa. (sic)"

This comes shortly after Shannen claimed her dog, Bowie, was the first to detect her breast cancer as she kept "obsessively" sniffing her right breast.

Shannen explained: "She [Bowie] would obsessively sniff right here on my right side for a long time before. So, it made sense when I got diagnosed."