No one warned me about the "zingers" so I was out shopping after the procedure when one of those zingers nearly brought me to my knees. That said, I went home, took some ibuprofen an dit was over within 4 hours.
I quit smoking andmy teeth were yellow so I thought I'd treat myself. The trays are just gross as are the strips, and time consuming. Would do it again. It was a tech who did it, not the dentist.