“…9 Minor flareups due to the eating of Dutch liquorice, which is known to contain anethole, might have occurred in our second patient. 10 Concomitant reactions to other flavourings and fragrance allergens (fragrance mix I and II and to balsam of Peru, in particular) may remain absent. As fragrance-free toothpastes may sometimes be hard to find, a compounded, flavourings-free toothpaste may be a practical solution.…”