A method that helped me restore good gut terrain was taking anti parasitic herbs (I took a product called GI synergy) that had Wormwood Extract
Black Walnut Extract
Undecylenic Acid
Caprylic Acid
Barberry Extract
Olive Extract
Garlic Extract
Uva Ursi Extract
Cat's Claw Extract
Pau D'Arco Extract
Goldenseal Extract
Oregano Extract
Oregon Grape extract
Chinese Goldthread Extract
Yerba Mansa Extract
in it. I followed it with taking 9 grams of colostrum and around 100 billion probiotics every day on empty stomach. Hope this helps.