1. One thing for certain is you best be very careful. His feces are likely highly infective!
It may be wiser to get a diagnostic from a conventional doctor then treat with a known proven frequency instead drugs.
2. You can use blood, however, I think some people don't see the same dangers with blood. Please be careful with your blood handling as well, make sure to wear gloves, safety glasses etc.
3. Consider a two day water fast and see if that clears up the problem.
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