stellaris
Paul Bragg I his book The Miracle of Fasting recommends never take a hot Epsom bath while fasting. I forgot and took a 20 min one on my 7th day of juice fasting and felt bad in my stomach while standing after, so had to lay down and rest for 15 minutes wrapped in the towel gown. It passed and I had a great bowel elimination (I was not producing any stools at the 7th day of fasting) so it was great. So my advice is yes, soak for 10 to 20 min max but be aware that you need to lay down wrapped in towel immediately after.