dentogelDentogel is a combination of Cho Salicylate, Lidocaine, and Benzalkonium Chloride. It is used to relieve pain, swelling, redness, and discomfort associated with mouthAvoid eating for 1 hour after taking Dentogel Liquid because this medicine may impair your ability to swallow. Q. What are the instructions for storage and disposal of Dentogel Liquid? Keep this