An infected cyst and peridontal disease won't have caused Hashimoto's which is an autoimmune disease.
If your dentist has prescribed Doxycycline then you should take the course as directed. Take Doxycycline 2 hours away from Levothyroxine. If thyroid levels do drop then they will pick up after you finish the course.
Thanks very much for your reply Clutter. I had been reading some articles by Isabella Wentz and other medical journals published online which had highlighted a link between gum issues -the gut- Hashimotos.
I found these links credible but maybe I was picking up the wrong end of the stick. I will reread again. Thanks for taking the time to reply.
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