Read the various detox tips in the forum and just detox all you can to combat the herx. I know it stinks, my herxes are usually 6 weeks long but they do end.
You might want to try some form of chlorophyll, either fresh vegatable juicing or chlorophyll tablets or supplements. The chlorophyll will help take the toxins out of your digestive track into your stool and keep them from being reabsorbed.
Hang in there.