Something to note, whether or not a health specialist has mentioned this .

Treatment of Chlamydia infection may exacerbate pre-existing genetic porphyria or more likely cause a secondary acute porphyria by making the intracellulari Chlamydia more active or by killing infected cells that already are loaded with high porphyrin levels. Some of what is mis-labeled as a “herx” reaction to treatment, is actually an acute porphyria reaction and not a reaction to bacterial endotoxini which is what a true herxheimer reaction is referring to.
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The porphyrias are consequences of any impairment of the formation of porphyrinogens or in their transformation to heme. Chlamydiae interfere with this step

http://www.cpnhelp.org/secondary_porphyria_what_