Based in France, in the Greater Paris region, DBV-Technologies (www.dbv-technologies.com/en) has been working on a range of immunotherapy products which it is hoped will revolutionize our diagnosis and treatment of many common allergies.
More information on this may be found at http://www.dbv-technologies.com/en/viaskin-products where the Viaskin Peanut, Viaskin Milk and Viaskin Egg patches are dealt with in detail. All three of these products are based around the same adhesive patch, the Viaskin patch, pictured below. This patch works by taking a very small amount of the offending allergen in powder form and facilitating its entry into the body through the creation of a ‘condensation chamber’ with the skin. By solubilizing the dry allergen, it’s able to pass through the upper layers of the epidermis and enter what are called the Langerhans cells. These cells are amongst the most tolerogenic in the entire human body. This makes them ideal for the purposes of ‘desensitization’ – getting the patient’s body ‘used to’ a given allergen, without triggering a severe allergic reaction, also known as anaphylaxis. The patch is worn discreetly on the patient’s arm and may be taken off at any time.