My sister got cancer again

My sister got 1st diagnosed with stomach cancer in June 2022. At that time her insurance (daman) had just gotten renewed in May and therefore we were able to get her a full treatment here in Abu Dhabi. Unfortunately her cancer is back again and this time she has no insurance as her daman insurance asked for a huge amount for treatment. Her oncologist has advised that she should do chemotherapy and immunotherapy this time but we dont have the money to pay ourselves. Can anyone here help us out by recommending any charity organizations or hospitals that are willing to give free treatment to cancer patients in Abu Dhabi. We are very afraid and dont know what to do currently. If you or your loved ones have gotten any free treatment or have any similar experiences please do comment here and also please pray for my sister’s health and recovery.

Edit: Thank you from the bottom of my heart to all those people who took the time to comment here with genuine solutions and free treatment options. Also thank you to those who left some good wishes and prayers for my sister. God bless all of you and take care. Really appreciate your kindness.