Is it permissible, in Sharia, to use homeopathic alternative medicine instead of chemotherapy, which relies on taking pills containing a very small part of the cells from the gland of a person with natural immunity, to treat breast cancer and boost immunity?

If the success of this treatment method is proven, then there is no objection to using it for treatment. Its ruling does not differ from the ruling on treatment with human stem cells, organ transplantation, or blood transfusion. Scholars have permitted treatment with unlawful and impure substances out of necessity.