Do you still feel the sting of the novocaine after getting laughing gas?

Not usually: Laughing gas or nitrous oxide has pain relieving properties. You shouldn't feel much, and if you do, you won't cate.

Probably not: Nitrous has analgesic and sedating properties. So you should temporarily check out for the injections.

The sting: You may still feel the "sting" of the "novacaine" after receiving "laughing gas" but generally, you don't care as much or notice it.