Has anyone experienced this: 3years ago my son aged 10 reacted to a new cheap school sweatshirt which was teflon coated. The rash is on the backs of his hands. Treated with hydrocortisone and problem went away. Now is trying on uniform for a new school and the same thing has happened only worse. Possibly coating on puffa jacket or sweatshirts from Asda, or M and S trousers which actually say they are teflon coated. My GP says he has never heard of this happening. Does anyone else know about this problem, and have any ideas of what to buy instead (plain black sweatshirts seem to be hard to find this year).