What is a Herxheimer reaction (herx)?
Dr. Adolph Jarisch and Dr. Karl Herxheimer first discovered this reaction in syphilis patients.
A Jarisch-Herxheimer reaction is...
- Common when Lyme patients begin antibiotics.
- Often called a “Herx.”
- A temporary worsening of symptoms.
- Caused by dying bacteria.
- Can last several days or longer.
Symptoms can include:
Exacerbation of previous symptoms