Stop Herx Reactions 80% Success Managing Lyme Die Off One of the biggest concerns Lyme disease patients have when beginning treatment is whether or not they will have a herxing response. In fact, it's one of the most common questions I LYME SCI: The dreaded Jarisch Herxheimer reaction Feeling worse before you feel better? It might be a Herx. Also called a Jarisch Herxheimer reaction, herxing happens when Lyme microbes are killed off and release toxins into your system, sparking a