What Is Multiple Chemical Sensitivity Disorder?
What Is Multiple Chemical Sensitivity Disorder? Multiple chemical sensitivity (MCS) is a syndrome in which multiple symptoms reportedly occur with low-level chemical exposure. Several theories have been advanced to explain the cause of MCS, including allergy, toxic effects and neurobiologic sensitization. What are the symptoms of MCS? disorientation, confusion. rash. hyperactivity. headaches, migraine. chest pains.