Please read the book Anticancer by David Servan-Schreiber (who is an MD and a PhD who had brain cancer). Give your wife only anticancer foods, such as spinach, kale, broccoli, cauliflower, onions, garlic, ginger, blueberries, blackberries, cranberries, pomegranate juice. Give her turmeric (the spice) or curcumin capsules. Have her drink green tea, dandelion tea, and p'au darco tea. Give her green juices (made from celery, spinach, green peppers, etc with carrots for flavor). Do not let her eat meat, dairy, sugar, or flour. Get her some flax oil and have her take that every day. Have her drink lots of water. And she should try to exercise. Exercise is very important in lymphoma. Good luck. I wish you all the very best.