there is a lot of advice for the chronic fungus problem already in the OPs other thread Severe Itchiness that BAFFLES vet
why did this baffle the vets though?
anyway -- raw food is an excellent choice .
you are going to have to give this dog a good source of probiotics , the higher the bacterial strains the better . This will displace the bad and replace a good gut colony of beneficial bacteria . Takes time .
Digestive enzymes and probiotics together can help heal leaky gut .
Adding Olive leaf powder is an excellent anti fungal .
as said in the other thread , this is going to be a detox situation . Help the liver , nettles or milk thistle . Lots of good clean water - no chlorine or fluoride . The dog may look worse in his detox period . The dog may have loose stools , urinate more , have gas , and appear fatigued . The coat will be shed so will look shabby , skin will be renewed .
If the Herxheimer's is too much , take a day off , or cut back . The system is overburdened with the die-off -- period also known as the healing crisis.
Spirulina and Chlorella help with the detox - chelation
Topically quality coconut oil and even with a drop of lavender or oregano , both being anti fungal , is soothing . Vetericyn combats external fungus and bacteria , and is soothing , while contributing to new skin regeneration.