Impact of Menthol Inhalation on Nasal Mucosal Temperature and Nasal Patency - Joerg Lindemann, Evangelia Tsakiropoulou, Marc O. Scheithauer, Iordanis Konstantinidis, Kerstin M. Wiesmiller, 2008
Always sticking these into your nose? Why nasal inhalers can be bad for you - CNA Lifestyle
Is Menthol Bad for You? Uses, Benefits and Side Effects - Dr. Axe
Menthol Crystals for Congestion & Sinus Problems
Steam inhalation at home / Steam inhalation benefits - YouTube