Do you have a terrible gag flex like me? The women at the dentist office HATE trying to get my x-rays. Did you know there are throat sprays sold to help numb your throat and help with blowjobs? I had no idea until a few weeks ago. They are basically like a regular sore throat spray. 
I read some of the reviews and decided to try the pink one from A&E called Deep Throat Desensitizing Spray which costs about $8.00. The taste was actually decent, sweet like candy, and after three sprays I couldn't feel anything, which definitely made things...easier.