I had it done twice in my early teens. (many, many moons ago! LOL)
It doesn't hurt while he is doing it bc. your toe is numbed. Kind of like getting a cavity filled using novocaine. Don't watch what he's doing. Try to concentrate on thinking of a pleasant memory or thought, like your favorite WDW attraction.
You will have some pain during recovery. Take what ever the doc recommends for that. I seem to remember my doc prescribing soaks in warm water with epsom salt to speed healing- so ask your doc about that. For at least the first 24 hours you will want to limit your walking around. Be prepared to go shoeless for a few days or wear sandals that have nothing near the big toe (I'm assuming that it's your great toe)
In the future whenever you feel the
beginning symptoms of an ingrown toenail do this: Take a whisp of cotton and pack it under the affected toenail. If it doesn't hurt a bit while putting the cotton in, you are not using enough. Pack in as much cotton as will fit under the nail. Make sure you pack it so that the corner of the toenail that you feel is becoming ingrown is raised. Change the cotton daily, replacing it immediately if it falls out. An ingrown nail is growing downward (toward the floor). Packing with cotton works bc. it lifts the nail up thereby reducing inflammation of the tissue that the nail had been growing down into. Leave the cotton in until the toe feels normal again (usually takes a week or two). Remember to where shoes that don't constrict your toe during this period.
Also, during the time that you are treating with the cotton packing, soak the foot (with the cotton out) in very warm water with epsom salt at least 2-3 times a day. If you see signs of infection starting (yellowish area surrounded by red, swollen area) then start using neosporin on the area too.
I know it sounds too simple to work, but it does! I have a family tendancy toward ingrown toenails (just the way our nails are shaped) and for years I'd get them 2-4 times/yr. Since I've been catching them early and using the cotton treatment right away, I've not had one get bad in over 10 years.
http://www.cnn.com/HEALTH/library/DS/00111.html
http://familydoctor.org/208.xml
http://health.allrefer.com/health/ingrown-toenail-treatment.html