Don’t know if this will directly relieve symptoms, but the spice turmeric is a really good toxin cleanser. It is a main ingredient in currypowder and curries. It is widely used as an antiseptic (put on open wounds and even to heal broken bones) in some countries where there is no modern medicine within reach.
Used as a tasty spice in food the bitterness of turmeric can be balanced by corianderpowder. A good taste combo is: corianderpowder, cumin powder and turmeric.