More help for you *IMPORTANT*
I strongly suggest GINGER for Nausea and the Peppermint is also very good! I strongly suggest he starts the Cayenne Pepper drinks I recommend but with the addition of Ginger. To make the drinks use 250ml hot water mixed with 1 tsp of Cayenne, 1 tsp of Ginger and 1 squeezed Lemon! Take this 3 times a day and ideally on an empty stomach!
The immune system is getting DESTROYED by the Chemo so in many ways its a waste of time trying to increase it.
What you need to be doing more than anything is using very high dosage (Pharmalogical) free-radical scavengers. I suggest:
Vitamin C 30-100 grams
Coq10 500mg
Vitamin E 800 I.U
Selenium 300mcg
Alpha Lipoic Acid 500mg
What these do is fight the MASSES of free radicals being developed by this killing, fraudulent, depopulating treatment known as Chemo same with Radiation and Xrays! They produce millions of free radicals which scavenge the body like little cigarette burns. The above spread plenty of free electrons in the body which the radicals are looking for, now they attach to these instead of the body.
Chemo will dramatically drop the power of natural methods against Cancer if you end up wanting to try them. Unfortunately many people turn to us after they've had chemo.