Check this out. Ace ME/CFS researcher and olfactory specialist Jame Baraniuk mentions aromatherapy in a 2009 paper. I did his spinal tap and proteome trial He is very interesting in how the receptors in the nose function and their connection to MCS. He thinks it's much more complex than most people think theory is that nerve inflammation by chemicals triggers responses in the brain: ie MCS). He's found that ME/CFS and control patients have markedly different rates of mucosal flow in the nose when stimulated. That paper got almost no notice however but again it suggests a hyper-reactive situation is present. Notice as well that he's focused on the sympathetic and parasympathetic nervous systems. Acta Clin Croat. 2009 Mar;48(1):65-73.Links. New concepts of neural regulation in human nasal mucosa Baraniuk JN, Merck SJ. Division of Rheumatology, Immunology and Allergy, Georgetown University, Washington, DC 20007-2197, USA. firstname.lastname@example.org 'Idiopathic non allergic rhinitus' - rhinitus that is not associated with allergy. That reminds me of hypersensitivity to food that is not associated with allergy - that concept that you can have a bad reaction to food that is not based on anaphylaxis - which the medical profession just doesn't seem to get (altho they are getting better). Once they get this type of reaction we'll be in good shape I think. Interesting - Baraniuk and aromatherapy - wonder what he thinks about it. Can aromatherapy be used to treat MCS? Gotta try to get his paper.