Is the metastasis of advanced breast cancer not good?

My sister was diagnosed with breast cancer by pathological examination in the spring of 2009, and it recurred four months after operation. She was diagnosed with extensive metastasis, extreme emaciation, weakness of limbs and loss of appetite. There are lumps of different sizes in the armpit and neck. After eating a prescription prescribed by an old Chinese doctor, the food intake immediately increased. When taking 30 doses, various tumors began to shrink. When taking 200 doses, the tumor completely disappeared and there was no recurrence for more than two years. The prescription is as follows, hoping to help other breast cancer patients.

Bupleurum 15g, Astragalus 15g, Perilla 30g, Codonopsis pilosula 30g, Prunella vulgaris 30g, Oyster 30g, Fructus Trichosanthis 30g, Gypsum Fibrosum 30g, Pericarpium Citri Tangerinae 30g, Radix Paeoniae Alba 30g, Semen Vaccariae 90g, Zanthoxyli 5g, and Radix Glycyrrhizae 10g.