Hi chiron,
It was years ago and my friend tried different mixes and amounts of all of the three: Epsom Salt and Baking soda and Hydrogen Peroxide!
He had Toxic Farm chemicals in his body which were causing him problems!
And just a small amount of any of the above would cause this reaction to take place as they all three would react against the Toxins in his body!
This is where I learned that if one was very Toxic, that one needs to be very careful in how much and how long one may soak in starting out to remove the Toxins from one's body by these means!