Safeguard Your Clinic Workspace Series 1 - Course 2

MIT Lung and Skin Allergen

Practitioners may be exposing patients to a nasty chemical called MIT, so injurious to the Skin and Lungs that it was named Allergen of the Year in 2013. Hand Wash and New Paint are clinic fixtures most likely to contain this Allergenic preservative!

Sue Nelson
Sue Nelson

Course Overview

Many TCM clinic practitioners may be unaware of the number of common usage products containing Methyl-Iso-Thiazolinone (MIT).


The use of MIT as a chemical water preservative since 2001 is out-of-control. It has been allowed to reach the absurdly high concentration of 100 parts per million (ppm) even after it’s mother product CMIT:MIT, with its much lower proportion of 15 ppm MIT, showed disturbingly high rates of Skin and Lung Allergies in exposed consumers.


MIT is out-of-control because it is in so many product categories. In 2001, MIT started as an industrial preservative in Paint. Unfortunately Allergy reports were ignored and MIT was then introduced to Cosmetics and Personal products in 2005. This was a disaster considering that Cosmetics and products such as Sunscreen, are LEAVE-ON products, absorbed directly into the Skin!


MIT is out-of-control because industry regulation is lacking. Paint manufacturers are allowed to ‘self-regulate’ the amount of MIT added to their Paints, with the result that exposure to Paint fumes accounts for 50% of all MIT-based Contact Dermatitis cases.


MIT is out-of-control because the medical screening test, the Patch Test, is applied to CMIT:MIT only, and not to MIT alone, leading to misdiagnosis. The main treatment for Allergic reactions - trigger avoidance – is impossible if patients have not been medically diagnosed properly. There needs to be a lot more public education about MIT so that people can select safer product substitutes.



PLEASE NOTE: While this course does cover safety-related topics, it is not accredited by NCCAOM under the "Safety Category", but rather the "AOM-BIO" category.


  • Identify the large array of common usage products containing the highly Allergenic MIT preservative.

  • Learn the aetiology of this Lung and Skin Allergen.

  • Be informed of the concentration threshold changes to MIT, with reference to industry regulation since its release.

  • Examine the management of this Delayed-type Hypersensitivity to obtain a protocol for product substitution and Allergen avoidance.


  • 0 hrs - 15 min

    There is a need for TCM practitioners to identify MIT Preservative in terms of the high Allergic potential arising from common usage products.

  • 15 min - 30 min

    Practitioners need to understand the potential for both Lung injury and Skin Injury from this Preservative Allergen.

  • 30 min - 45 min

    The chronology of changes to MIT products highlights the inadequacy of industry regulation during the years of marketing.

  • 45 min - 1 hrs

    Anecdotal evidence helps to illustrate the aetiology of this T-Cell mediated Hypersensitivity, and to analyse the screening test and potential treatments.


Sue Nelson

After learning a traditional style of Chinese Medicine, Sue Nelson B.A, B.TCM has been in continuous clinical practice in the Sunshine Coast hinterland for 3 decades. She uses an eclectic range of healing therapies and enjoys a country lifestyle. She has lectured at 2 Brisbane Acupuncture colleges.


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More Details
  • CEUs:

    Approved By: Florida (1), NCCAOM (1), Standard Certificate (1)

    Pending: California [Upon Request]*

  • Language: English

  • Course Type: Recorded Webinar

  • Course Length: 1 h

  • Course Notes: Notes are provided with this course.

  • Access Period: Lifetime


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