Answer by
CatherineKlay (440)
You don't. A competent doctor can. Herx response (fever, chills, headache, myalgia (muscle pain), and exacerbation of skin lesions) can also indicate: salmonellosis, echinobacter coli infections, pseudomonas infections, moraxella, stenotrophomonas maltophilia, legionella, borelia recurrentis, neisseria meningitidis, gonorrhea. See your doctor (primary care or infectious disease specialist) immediately.