Here is my opinion on this:
Scabs are a routine side effect when working on the body and one should not worry about body scabbing. I don’t like to see scabbing on the face, though it happens sometimes, and I work harder to use strategies to prevent scabbing from happening on the face.
When we talk about accepting scabbing on the body, those scabs must conform to certain guidelines, meaning, the scabbing should not be very large. Tiny pinpoint scabbing is not problem as they heal and slough off in a week or two with no adverse effects to the skin. In the case of large scabs, that may or may not join together to form irregular patterns,then we are talking about overtreatment,and this scenario should be corrected and avoided in the future.
So not all scabs are equal when we talk about body work like on your back. Tiny scabs that do not connect are okay and all will heal well. Large scabs that may or may not connect is caused by overtreatment. They will take longer to heal, but they will heal pretty well. In the case of larger scabs, the electrologist can adjust intensity and timing, work on making perfect insertions and scatter his/her work to avoid these kinds of scabs.
If you are not treated with enough intensity, the hair will be treated insufficiently. If an electrologist is afraid of causing even little tiny scabs, he/she may undertreat the hair and the client will be plagued with regrowth and prolong the whole process. Body scabs are not a problem in my view, but, I repeat, there are limitations as to what is acceptable as far as size of scabs and how close those scabs are together. Some areas of the body are very moist and, true, it may be impossible to avoid scabbing.
Do avoid exercising and excessive sweating after a treatment. This will help limit scabbing, too.
You didn’t describe what the scabbing looks like so it’s not easy to judge who to stay with for electro on your back. I tend to fall into the camp of those that say tiny scabs are acceptable, if not desirable, for body work. I’m not afraid to use intensity if it means the regrowth rate will be less AND the scabs are the type and size that will heal and slough off in a week or two.