A rare condition called dermatomyositis results in skin rashes and muscle inflammation. These are a collection of illnesses affecting the muscles that result in swelling and inflammation.It's different from other muscle diseases because it also causes skin problems. Dermatoyositis is the term used to describe involvement of both muscle and skin symptoms. Mostly seen in the age group of 50 to 70 years but can present at any age. The disease is twice as likely to strike women as it does men. Some people with the disease also have a connective tissue disorder, such as lupus or rheumatoid arthritis. Diagnosis at time and administration of steroid holds better prognosis of the patient.