Shannen Doherty
Cancer-stricken Shannen Doherty is undergoing another session of chemotherapy David Livingston / Getty

Shannen Doherty is keeping her fans updated about her battle with breast cancer. The American actress recently shared pictures of her chemotherapy session revealing the many faces of cancer as she continues to document her battle with the deadly disease.

"The many faces of cancer. Chemo Day. What we call the Red Devil being injected into me via the port that's in my chest, Dawn is my nurse who takes excellent care of me August 10, 2016, #cancersucks #fightlikeagirl," Doherty captioned a black-and-white image of herself as she watched the nurse injecting the medicine.

The 45-year-old Beverly Hills, 90210 actress shared another picture that showed her husband Kurt Iswarienko planting a kiss on her forehead. "There are many faces to cancer. This is one of them. Chemo Day With @kurtiswarienko by my side," she captioned the image. She had previously praised her husband for being a strong supporter in her cancer battle.

The actress was diagnosed with breast cancer in March 2015. Later she announced that her cancer had spread to her lymph nodes. This is the fourth session of chemotherapy the actress is undergoing. She has previously completed three out of eight rounds of chemotherapy and a mastectomy.

Doherty also posted a picture of a girls' night out on 23 August in which she is seen posing with a friend at Nobu in Malibu to celebrate her appetite before beginning another session of chemo treatment.

"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, so for that reason, we are doing chemo, and then after chemo, I'll do radiation," she told ET Online.

"The unknown is always the scariest part. 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."