I have had mine stringed a few times.
Make sure you use the oil a few days before as I hadn't been doing one of mine as frequently as i should and it meant I had to have a second visit. Hurt like hell. One ear was incredible.
I was down to less than 10% of my hearing, having 1-1 meetings at work and couldn't hear people in close conversation was annoying. I was really worried about needing the suction but thankfully I got sorted before.
I remember covering my ears walking home from docs because cars hurt my ears. The clock in my room kept me awake for 3 nights I had to take the battery out to sleep.