Secondary breast cancer stopping treatment

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Hello, my sister decided to stop treatment for secondary breast cancer (spread to her bones liver and lungs) due to debilitating side effects of last chance drug (she has survived longer than expected but there are no drugs left for her to try other than the last one that was making her so ill ).  she is feeling exhausted and nauseous and has fluid on her lungs again (which she says the hospital probably won’t keep draining as no point as fluid will return.  .  She doesn’t want to see me at the moment, says she just wants to rest.  I am wondering and worrying what to expect from here ?  How long she may live ?  I don’t feel i can ask her what plans she’s made as I’m not sure when she will need to seek palliative care, or what she wants … it feels uncomfortable to ask and bring it up for her .. ….She has good friends and she is extremely independent.  My offers of help are often rejected.  Her friends are reluctant to discuss anything with me. 

  • Hi Sisternicola

    Thanks for getting in touch and welcome to the Macmillan online community. I see from your profile that you have joined 2 of our forums. I hope you are finding them supportive.

    I’m sorry to read that your sister has decided to stop treatment due to the debilitating side effects. It’s good to read that she has good friends supporting her.

    It is difficult to have questions that you feel you can’t ask your sister. It’s a difficult and emotional situation to be in.

    You may find our booklet Coping with advanced cancer useful.

    We also have information about emotional support for family and friends.

    It can help to talk things through so please don’t hesitate to contact the nursing team. We are here every day from 8am to 8pm on 0808 808 0000.

    I hope this information helps. Please feel free to get back in touch if you want more information or support.

    Best wishes,

    Fiona M,

    Cancer Information Nurse Specialist 

    You can also speak with the Macmillan Support Line team of experts. Phone free on 0808 808 0000 (7 days a week, 8am-8pm) or send us an email

    Ref/HC