The most common mistake people make is to subject persons with sensitivities to a reverse onus when they report their experience of repeatable, controllable circumstances, contrary to ethics, social convention and laws since the Magna Carta. This practice is unethical in any context, but becomes especially damaging in clinical medicine.
Some academics quite openly ridicule vulnerable persons by subjecting them to a reverse onus and then forwarding arbitrary hypotheses. This abusiveness is defended by people who confuse hatefulness and academic freedom. Abusers like Barry Beyerstein of SFU are often otherwise the most affable and caring amongst their peers.
In 1985, Eugene Garfield, PhD, President & Founding Editor of The Scientist provided an excellent overview of medical literature about sensitivities. Garfield documents several approaches, as described in scientific and medical literature before the discussion was subsumed under debate about the approaches of doctors of environmental medicine.
In 1985, 
