Hmmm...after suffering from a really bad skin rash that would make me scratch and bleed all over, after several attempts to resolve it, I finally figured out my water was causing these issues. About 5 years ago, the town I was living in started to upgrade the water system pipes, so I assume they added extra stuff to kill bacteria and stuff. I don't really know. All I know is my symptoms started from one day to the next and it took me a year to figure out it was the water. My neighbors didn't have outward symptoms, but did notice the water smelled different. I guess I am lucky that my skin is so sensitive that I quickly show symptoms if something is not right in my environment.
Anyways, after adding one of these expensive water softener systems, my skin totally cleared up. Money well spent, in my opinion.
I also moved the system with me when I moved to a neighboring town. Recently some symptoms returned, and after further analysis I figured out it was my old water heater corroding and adding stuff to the hot water while showering that was giving me a new rash. After replacing the water heater, the symptoms are gone again.
Sometimes I curse my skin issues, but by being so sensitive I feel I can quickly detect toxins in my environment and prevent internal, invisible damage that could be done by these toxins if there were no external signs of how it is affecting me. But itchy rashy skin is no fun...just something I have to deal with when toxins are around. I'm so happy to be skin clear again.