Hi I wish both you and your mother the best of luck I see you have put together a nice protocol to help your mum. I am glad your mother is doing well.
If I may there are a few other things you could have a look at including:
Boswellia: The resin from Boswellia serrata has an important role in treating brain cancer. Boswellia is commonly used for treating inflammation. 500 to 1000mg per day.
Vitamin d3 5,000 iu per day
Selenium 200mcg per day
Alpha-tocopherol-succinate (type of vitamin E)400 IU per daily
1,200 mg dailyMelatonin 10 to 20 mg at bed time each night
Curcumin around 2,000 to 3,000mg per day
Quercetin around 1,000mg per day
Green tea extract 700mg to 2,000mg per day EGCG or 10 cups of green tea without milk
Trans-Reveratrol 400 to 500mg per day
Sulforaphane 90 mg per day
One should use curcumin and boswellia as they act to reduce inflammation, reducing the necessity for steroids, you really have to keep on eye on swelling in the brain.