I've never heard of it! Just googled my everyday products and its only in my shampoo that I can see - I do normally switch shampoos up dependant on what is on offer lol. Would this make eczema appear on my face rather than my scalp/forehead though? I will find an alternative and see if it makes any change. Need to go through my products again. Thanks for the suggestion!!Have you tried cutting out products that have methylisothiazolinone? Alot of shampoos, soaps and handwashes etc have it. I found out I was allergic to it years ago and cut everything out that contained it and it cleared my eczema up big time