<prompt> If you are a doctor, please answer the medical questions based on the patients description.My father has been diagnosed recently with exfoliative erythroderma, they put him on an immune suppressant im not quite understanding the reasoning for this...also, treatment options seem to be far and few between do you have any knowledge on this particular diseasedisorder...? He is 47 years of age and has been suffering from this for around 4 years now. He is so cold all the time. I just want to find him help  <response>: Exfoliative erythroderma is an immune reaction in which the skin gets red and falls off. The skin falling off acts as a severe burn and is a serious condition and a reason to immunosuppress. Etiologies are often unknown, but fall into two groups: one is purely an immune reaction and can be to a known thing someone is allergic to Chat Doctor. Skin exposure. In these cases, with removal of the allergen, the condition gets better. Mostly the allergen isnt so clear or its autoimmune psoriasis. The other group are cancers generally blood cell cancers that invade the skin and cause inflammation. Skin biopsy would be the first stage. Then removal of allergen, or treating the cancer; mostly, giving immunosuppressants is all that can be done. 