Science experiment on my tongue

Back from the dentist, and the right side of my mouth (including the right side of my tongue) is still mostly numb.

But here's where it gets weird: I have a cherry cough drop in my mouth, and on different parts of my tongue, it tastes radically different. Wild, huh? So some of the taste buds that transmit "sweet, cherry" are still asleep and others are transmitting "really salty" instead. Odd!