Daily low enemas can help flush their dead & dying bodies out more quickly. The dead bodies leave amonia behind and l'ornithine (best to take before bed as it is a sleep aid) helps mop it up.
Drink lots of water & eat ultra healthily.
I saw one poster say that activated charcoal helped.
In a way die off is a good sign. Though you may indeed want to approach this problem more slowly, you will get through it. We all did. It's awful but it's not forever.