BBC NEWS: Ms Coffey, 53, from Manchester, New Hampshire, was diagnosed with breast cancer in 2013 and later fell ill with complex regional pain syndrome.

Ms Coffey’s illness forced her to stop working as an emergency medical technician. She said she started a crowdfunding drive and had to sell most of her belongings in order to pay for the treatment herself.

“I get to have some normality. I can sit up and paint, or I can enjoy a meal with my family” because of the treatment, she said. “I can have a life that’s worth living.”

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