When it comes to clinical, chronic anxiety there are no "magic cures"; however flewd's "panic-crushing" soak is a great tool to have in your arsenal against it! 90 minutes after my flewd bath I did feel more relaxed, and the knot in my chest had mostly released. I was less tense, and I felt I could breathe more easily. I experienced a divine night of sleep as well! My only criticisms are: 1) the effects only lasted about 24-hours for me, and 2) the soaks are a bit pricey for regular usage.
Full disclosure: I did have an extremely stressful day (and week) the day after my soak, so it's possible I would have felt better for longer had circumstances been more "normal".