My friend's husband has been advised he has psoriasis by a nurse. 80% - his body is covered in red dry batches, very itchy, hot and cold plus has electric shots running through his body. Constantly scratching, flaking, peeling and has been on many steroid creams but nothing helps. There was a post that I can't find now that said a blood test needs to be done re liver - he is not a drinker - that previous post also said drinking isn't the issue. Can't someone help please.