I don't understand what's going on with doctors today (it seems like they just want to keep themselves in the clear from the insurance companies, government, child laws, etc.), but how could you be infecting anyone unless you were also diagnosed with meningitus?).
FOOD GRADE diatomaceous earth is used for dewormingcleansing in humans, but also pets (don't BREATHE in the dust, could be bad for lungs).
There is a clay called "Pascalite" that people have found to be helpful for healthy skin and a honey from New Zealand called "Manuka" honey that heals skin lesions, but if the doctors are completely backing away from any diagnosis for you, maybe they just don't have any real idea of what you have (cover up?).
Dengue fever is making a comeback in the U.S. recently and many doctors aren't trained to recognize it (let alone know what to do about it). This is an embarassing situation for doctors, they would rather make believe it's all in your head.