Comments about Orajel Maximum Strength Gel Oral Pain Reliever, .42 oz:
It starts to work immediately, but it's best to apply with a q-tip, otherwise it'll spread through your entire mouth. The numbness only lasts minutes, so I only use it right before I eat something really cold or really hot. I give it 5-10 minutes tops before the numbness starts to wear off and the pain returns.
Bottom Line No, I would not recommend this to a friend