Emma's treatment for cancer

My darling Emma at just 7 years old was originally diagnosed with Multiple Myeloma. Vet bills have already exceeded the insurance limit for this year at over £6000 but she is doing well on the treatment. However yesterday the specialist rang me to say the results of the last test have confirmed that it is actually Lymphoma. He wants to give her a 19 week programme of drugs at a further cost of approximately £5000. There is no way I could afford this. Please can anyone help my baby girl? It is breaking my heart that I can't give her the best treatment. I always promised I would do my very best and now it looks as if I will have to break that promise. I will be eternally grateful for any help you can give as this would be her best chance of being pain free for longer than on her present medication. Thank you in anticipation.