The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Alopecia areata (AA) is the commonest autoimmune cause of non‐scarring alopecia. Topical treatments including corticosteroids and irritants maybe beneficial. Studies report variable hair regrowth with dithranol (anthralin) but all used low concentrations (0.1–1.25%) and inconsistent measurements of AA severity. We report retrospective data (2005–2014) of 102 patients who had failed ultra‐potent topical...