Short answer: a psilocybin session or truffle ceremony is not a proven treatment for tinnitus. It may influence how you perceive the sound, but the direction and duration of change are unpredictable, and I cannot verify individual outcomes.
In practice, people report three broad patterns: tinnitus fades into the background during and sometimes after a session; it eases during the session but returns to baseline in the following weeks; or it feels more noticeable for a short time before settling back.
If stress, hypervigilance, rumination, or poor sleep make your tinnitus feel worse, a well-prepared session may help some people feel calmer and less focused on the sound. That said, psychedelics can also increase sensitivity to sensations, so a temporary uptick in awareness is possible.
If you are exploring a guided approach, you can read more about truffle therapy at Triptherapie. Choose carefully, screen for suitability, and prioritize preparation and integration.
Hope this clarifies what to expect.