I got 3M safety earmuffs specifically for my kid. They reduce the noise to a more manageable level, which is useful if either of us have a headache. But we sort of got used to the noise, so we don't use them much.
Seconded! I love my 3M earmuffs, low-end Peltors. I can add earbuds underneath them if I want a little music or generated noise to completely remove audio distractions.