KeepHope, make sure your doctor knows what you are experiencing. His/her advice should be the first thing to follow.
Herxes are caused from toxins created when the bacteria are killed. It is important to do things to detoxify. Some things that can help to detox are exercising, saunas, detox baths, and taking supplements like Milk Thistle, Chitosan, Questran, or Parsley. Ask your doctor about adding these to your protocol.
I believe some doctors recommend drinking Alka-Seltzer during a herx. Drinking water with lemon may help some.