Ochratoxin is a mycotoxin from molds etc…
There are several herbs that have research showing some good effects.
Milk Thistle
Turmeric
Cilantro
Chorella
A little activated charcoal can help too, if there’s still toxin in the gut.
making sure one is really well hydrated is important dor detoxification too.
Don't use herbs or combine herbs with medications or use them during lactation or pregnancy without talking with your healthcare provider.