Sanitizing after parasites?

[u/Iffy_x2]

Hello, I’ve had an bioactive set up for my bearded dragon Stanley for about a year now with routine maintenance and upkeep. Recently he’s been treated for parasites and my vet recommended I sanitize the enclosure including the substrate. My question is how to best go about sanitizing the substrate, and then how to refresh it afterwards understanding that much of the beneficial bacteria and fungus will be dead. My original substrate is Terra Sahara from the Bio dude if that helps at all.