What about transdermal applications like magnesium chloride oil massages or used in tub soak water? What about baking soda in tub soaks? She might check into using Iodine transdermally or in tub or foot baths.
Everything I have read says transdermal application (soaking, spraying or rubbing into skin) is so much gentler as opposed to taking things like magnesium chloride orally. Does she have a doctor who could recommend how much to use in the soaks or transdermally?
Baking soda is said to kill mold/fungus, and magnesium chloride is supposed to ramp up immune defense by 300% according to available articles on the net.