I read somewhere that detergents could possibly be a trigger for eczema. One website said detergent molecules as long and skinny and soap molecules are more rounded. Abby's skin is thin, irritated, and damaged in the areas where the flare-ups happen the most. The cream the doctor gave us to put on it when it flares up actually has a warning to not use it too often b/c it can make the skin extremely skin. She referred to it as "onion skin". I think the sharp detergent spikes poke into and irritate her tender skin, but the rounded soap molecules tend to sort of float on top of it. Think about it this way, which is easier to accidentally stab yourself in the finger with, a sharpened pencil or a ball point pen?
I found these microscopic pictures of laundry detergent and soap.