Earbuds are somewhat notorious for causing some discomfort when used for a long period. This can be due to incorrect tips being used or moisture build-up. When that happens, you’ll feel that your ear canal becomes sweaty, and there could be some moisture on the tips themselves. Make sure that the earbuds and the tips fit correctly in your canal, and vent your ears every so often in between gaming sessions. This will help to regulate the temperature and prevent moisture from forming.