Our essential oils are 100% natural; therefore, you are less inclined to be allergic to the chemical copies used in perfumes. Moreover, allergies to essential oils may be triggered when directly applied to the skin. As the Transducer diffuses a fine mist of our essential oil blends into the air one is less prone to trigger any allergic reaction. However, allergic reactions can be triggered by a number of factors, in the first instance, we suggest that you contact your GP or dermatologist for an exact diagnosis. Once you have your diagnosis, our customer care team will be happy to support where they can, by contacting info@transducearomas.com