Multiple chemical sensitivity (MCS) is a disorder with symptoms that affect the human body and the respiratory system. Multiple chemical sensitivity is derived through exposure to chemicals in the environment. Persons who suffer with multiple chemical sensitivity can have a reaction to everything from perfumes to off gassing of new carpets and other chemically toxic products.
The symptoms of multiple chemical sensitivity are different and unique to each individual making MCS one of the most difficult disorders to diagnose and to treat. Many symptoms are the same as those of allergy sufferers.