Consume different types of fermented foods and drinks.
Try kombucha, fermented raw milk, pine needle soda, high organ meats, mouldy yoghurt (should be green mold around the raw homemade yoghurt), aged cheese, water kefir and raw milk kefir, fermented fruit sodas, fermented eggs
etc.
The point is to consume many different types of the good bacteria that will heal you from the inside out. Oh and dust mite allergy can get more intense when eating processed foods like chips and whatever there is.