Cannabis will help your wife. It has shown effectiveness in preventing tumor angio-genesis, metastasis and with slowing and halting cancer cell growth. It will also help with the symptoms of cancer and the side effects of conventional treatment. I would immediately have her ingesting hash oil/hemp oil/rich simpson oil with CBD and THC. She should ingest as much as possible as she is stage 4. She may also benefit from a vaginal suppository (foria.com) as well as other forms of cannabis such as inhaled (smoked or vaporized), edibles and topicals. If you can, schedule a visit with a doctor who specializes in cannabis, so that she can be fully evaluated and monitored.