I think it is correct to say that probiotics do not implant on an inflammed gut wall...
Wiping out pathogens should eliminate this inflammation - theoritically - and then maybe taking some aloe gel (straight from the leaf) mixed with probiotics would do both - heal the gut and reflorestrate.
I made myself ok doing this in 2000.
Nowadays my levels of good bacteria are low; but not absent.
I keep eating my home made probiotic yoghurt ; good bacteria are needed in the lumen at least to produce the B vitamins. But until the crypto and candida are healed, I don't expect much repopulation to happen.