Dermatomyositis it is an uncommon inflammatory disease marked by muscle weakness and a distinctive skin rash. The disease shares many characteristics with autoimmune disorders in which our immune system mistakenly attacks our own body tissues. It may also contribute to develop dermatomyositis when a person has a compromised immune system; from viral infection or cancer for example. To view more about allergies and skin condition visit http://blog.drsundardas.com/category/allergies/