A little advice if possible..

[jiml]

In addition to carolines comments, get names of people who are ordering you to do unsuitable work, write a letter to the person who gave you the placement. Telling him your concerns and tell him you are happy to do any reasonable work, but you have taken advice and that says that the work is unsuitable for a psoriasis sufferer. Could he put in writing to you what you are expected to do.. So if things get bad health wise you would have evidence. Tell them in your letter that you understand the idea of the placement system, but it should not be to the detriment of your health and you will turn your hand to anything reasonable, and will do this placement providing they will put in writing that it is not going to harm your health
Just another idea