Just a word of caution with regard to doxycycline and all tetracycline derivatives: my son was prescribed a very low dosage of doxy for extreme acne. He lost his vision and developed what is known as "psuedo-tumor." This condition occurs very, very rarely and it is when the metabolism is altered and the body behaves as if a brain tumor has developed. This causes an increased production of spinal fluid within the brain and along the spine within the meninges and causes extreme pressure.
For my son, the pressure within his brain caused a 2-week migraine that was treated at the ER as a "virus," and he was sent home. Three days later, he lost his vision and was sent to an opthamologist who knew, immediately, what it was. His rods and cones within his optic nerve had ruptured and hemorrhaged which caused his sight to fail.
We should be very, very cautious about all treatments: holistic and allopathic, as well as all other practices.
My son has regained as much sight as he's going to and has a permanent "cross-hairs" disruption within his field of vision.
One step at a time, JamieT - one day at a time. Beating a parasite infestation takes time, patience, and diligence.