Chlorine-free shower head | MCS? Hi Crus, It looks at though there are a number of things that all conspire against you in the shower that are collectively aggravating your symptoms. My experience is that when the gut is sick and sensitive that even small changes in water, air, temperature, smell, food, products etc. can have a negative impact. There have been many great ideas here about things that could reduce the 'shower attack' but I wonder have you considered the quality of the water, the bathroom cleaning products that are used as well as the shower gel ingredients? There are shower heads that can fit onto existing showers that filter the water for chlorine and gases that can be produced when the water is released. They can be fitted quickly and without having to pay someone to fit any big new piece of equipment. As a bonus, they also reduce mold. When the shower area becomes damp from the water, it releases harsh chemicals from all of the surrounding surfaces from any bathroom cleaning products. Our airways are moistened in the shower/bath which makes us more sensitive to even small changes and can leave us pretty sick. Could it be that you might have some kind of MCS (multiple chemical sensitivity)? I hope you can find the cause of the problem one way or another.