Hope I can help in some way. I have been suffering for a long time, with a current reactivation, bedbound 22 hours a day, so I understand how your son feels. I would stay away from the Keto diet , as I tried it, and it sent me into a horrible tailspin within two days. Most EBV protocols tell you to stay away from meat. It has high arginine. You need high Lysine, low arginine, and ALA for reversal of any nerve damage, Aloe Vera Juice, and a plant based, alkaline diet. High doses vitamin C, and astragalus. Coconut oil is converted into monolaurin in our bodies. Also I read that Sambucal daily to keep the virus in check while trying to heal it will help, as it has Elderberry, I am going to try it long term. You can't give the virus a chance of reactivating. When I put tons of Vitamin C in my body, I get worse, then better. Make his immune system super strong, fill it with vitamins and minerals, and anti viral herbs. Go at it from all sides. EBV likes to hide out in the spleen, I am going to try infrared therapy on my spleen and will advise if it helps. Hope this helps a bit.