So, how long do Hashimoto flare-ups last? It depends, but usually a few days to a few weeks, with a lot of personal variation. The cool part is that your body is communicating with you, and you’re learning to listen. Next time a flare hits, you can smirk and say, “I know you, immune system—you’ll chill out in a bit.”
In the end, it’s not about a perfect timeline; it’s about riding the waves with curiosity and a little self-compassion. And hey, you’re already one step ahead by asking the question.
