Can you use viscous lidocaine for a teething baby?

Not a good idea: Swallowing viscous Lidocaine is not good for them and could lead to choking. Chewing on something cold and firm is more helpful. Give them a damp washcloth that as been frozen in the freezer to chew on. Commercial teeth rings that can be frozen are available as well. Teething is a normal process. Avoid medication like painkillers unless absolutely necessary. Most babies really don't need them.

Lidocaine: Viscose Lidocaine can be absorbed from the mouth directly. Can produce very dangerous effects. Babies depend on a high heart rates to pump the blood efficiently from the heart. Any slowing of the heart rate such as produced by Lidocaine can be very dangerous. The cumulative dose, if you repeat the application, is even more dangerous.

No: Lidocaine, even topically, can easily overdose an infant. You should not use this medication except under the direction of a pedodontist or pediatrician.