ABSTRACT
Multiple chemical sensitivity (MCS) is a complex, multisymptom, multi-system multi-organ illness that is induced by exposure to a wide variety of toxic environmental insults. It is often co-morbid with other overlapping syndromes and evokes a similar range of symptoms (Table 50.1).1-5
MCS goes under many names and overlaps with many other syndromes and conditions (see Table 50.1). The most frequently used terms recognize that chemicals and the environment are understood by the affected people to be associated with their disabling illnesses. Among the overlapping syndromes are disorders, diseases and misdiagnoses that any competent physician would be expected to identify, for example coeliac disease, carbon monoxide poisoning and hypothyroidism.
