The topic at hand is about preparing for an Ayahuasca retreat as someone with an ostomy. The person is looking for advice and experiences from others who have been in a similar situation. Here are some key points and advice shared by others:

- Managing an ostomy in a remote setting can be challenging. It's important to plan ahead and ensure you have all necessary supplies and support.

- The retreat's vegetarian or "clean" diet might require some adjustment. It's a good idea to prepare your body by gradually changing your diet before attending.

- During the ceremony, vomiting, diarrhea, or other forms of bodily purging are common. This can present unique challenges for ostomates, so it's helpful to hear from others who have managed these situations.

- Some have found that stopping certain medications and switching to a strict, clean diet beforehand can help reduce nausea during the ceremony.

- It's beneficial to choose a retreat that offers private rooms with private bathrooms and is accommodating to those with an ileostomy.

- If you're tapering off antidepressants and changing your diet in preparation, make sure to do so safely and with medical guidance.

- Check if the retreat can provide prompt Western-style medical care if needed, such as for infection or severe dehydration.

- Staying well-hydrated is crucial. Bringing electrolyte or hydration drops can be helpful, and some consider documenting their experience through a public journal or blog.

- Vomiting is a common effect of Ayahuasca, and those with parastomal hernias or concerns about leakage should consider retreats that offer immediate help and privacy.

- Dehydration is a risk due to nausea, vomiting, or diarrhea. Having someone on-site who can quickly get you to an emergency room if needed is advisable.

- When selecting a retreat, look for centers supervised by medical professionals and ensure they have private bathroom facilities and on-call medical staff.

- Following the pre-ceremony diet and stopping contraindicated medications can reportedly reduce sickness during the ceremony.

- Bringing oral rehydration products and closely monitoring your output is recommended.

- Some suggest considering psychedelic alternatives like psilocybin ("mushrooms") as they might be gentler. Positive experiences have been reported with microdosing Psilocybe species, though experiences with Amanita muscaria are mixed.

- For further resources, there are videos and information available online, such as those from the Soltara Institute and Dr. Gabor Maté.