www.healsoaz.org  l  HEAL of Southern Arizona MCS Web Guide                 




of perfume, pesticide, or tobacco smoke could make a person with MCS sick for hours, days, or longer. 






Multiple Chemical Sensitivities (MCS)





People with MCS can have severe and sometimes life-threatening reactions to chemicals found in many common products. A long list of everyday products (including perfumes and colognes, pesticides, tobacco smoke, vehicle exhaust, air freshener, and fabric softener) can trigger immediate or delayed symptoms.


Headache, trouble breathing, trouble concentrating, dizziness, fatigue, muscle and joint pain, irregular heartbeat, and seizures are just some of the symptoms that can result from even minute exposures (see Are Chemicals Affecting Your Health?)


MCS is an invisible disability: sufferers may appear healthy even when very ill  - see But You Look Fine. Specially trained doctors can diagnose and treat MCS, although at present there is no cure for this debilitating illness.


The 20 page booklet “Multiple Chemical Sensitivities” by Ann Mc Campbell, MD is a very good overview of MCS, who gets it, what can be done, and other common questions people have about this condition.  Copies are available from Heal of S. AZ.


Definitions of MCS…

A Brief Overview of MCS from the Chemical Injury Information Network

MCS as defined by Ecology House

Two Definitions of MCS from Dr. Mark Cullen, Yale School of Medicine, quoted by most Occupational and Environmental Doctors and the definition printed in each issue of the clinical ecologists' journal, Clinical Ecology.

Definition of MCS from Australian Doctor Mark Donohoe



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