Citric acid, here. It's still a part of my life, but it seems to have tapered off, unless I'm stressed overly much. It manifests as an eczema on the tips of my ring and pinkie fingers. Definitely don't use liquid soaps, and I've rotated through shampoos since I turned 25 (while they do have to post the ingredients, they don't have to tell you when they've changed the formula). Any sort of cleaning solution that inclues the marketing "made with natural ingredients" or "fresh scent" I have to look at carefully. Fortunately, the cream my doctor has given me works really well.