Hi macaco,
I do hope someone answered you in a private message at least. These are excellent questions and concerns, and important.
The energies, I am assuming you are talking about toxins and not entities, so I will talk about toxins and not entities.
Some people are able to transmute the energies, change them into something that is not harmful.
But if that is not practical, then as you surmised, helping the energies go where they will be taken care of is a great way to go about it.
Because we are human animals with thinky-brains, using symbolic actions can help us to facilitate and firmly direct the intentions of the safe handling and release of the toxins.
A couple examples here, using the elements and some plants.
Use smoldering incense to waft over the person. As the incense rises, so do the toxins, and air will help release and dissipate them. Water is a wonderful help. While you are working, periodically dip your hands into one bowl of water you have set to the side. Let it be your intention that the water will wash off and hold toxins you are accumulating. When done with the sessions, carefully return the water to the earth. Alternately, wipe the person with a damp cloth, let the cloth hold all the toxins. Burn it or wash it in running water after. You could use fire, you have a fire going when you work? You could brush people with a dried fragrant bundle of plants, let the plants pick up the toxins for you, then place the bundle in the fire for purifying. Earth can help as well. You can dig a small hole near your work area, or use some earth in a pot for the same. Blow or cough any toxins you are accumulating right into the hole. When done, fill up the hole with more earth, and let it go at that. If in a pot, put it back into the ground.
Properly, you would be using a lot of thank yous to these helpers as you begin to work with them. The attitude of gratitude has a lot of flexibility and power to it. But you see the process? You are not alone in this. Air, water, fire and earth, plants and all around you can help you keep clean. If you work with any helper spirits besides Kambo, invite them to be with you and help you deal with toxins during the session. Go with what you resonate most with. You will come up with some movements of your own I am sure.
If you find yourself placing yourself in the way of the energies/toxins, does that mean you are seeing them clearly? The nature of the toxin can indicate which method or practice would work best as far as supporting healing and safety.
What have you worked out for yourself? I see your last post was from September. I wish you all the best, and I am glad you are taking this so seriously.
-mudhen