These supplements don't interfere with the liver cleanse, but don't take them on the day of the flush.
Raw garlic can be toxic to cells, including brain cells. I wouldn't take it if have brain fog. It can also kill probiotic bacteria.
Without a series of liver cleanses it is very difficult to recover from these problems, if not impossible. Make sure to follow all the directions properly (as provided in The Amazing liver Cleanse, 1stbooks.com), including the colon cleanses that are part of the liver cleanse, as well as the pre-treatment for softening the stones.