Overview

Polymyositis and dermatomyositis are problems with your immune system. Polymyositis attacks your muscles. Dermatomyositis attacks your skin and muscles.

These problems affect people in different ways. Most people have muscle weakness. Some people also have swelling or pain. Others get a rash.

Your symptoms depend on the muscles that are affected. It may be hard to swallow if your throat muscles are affected. And if your chest muscles are affected, it could be hard to breathe.

Medicines can help with swelling. They may also help control your immune system. Physiotherapy and other exercises can also help.

How can you care for yourself at home?

• You may get different medicines. Some may be for pain and swelling. Others may be for a rash. You may get some to control your immune system.
• Take your medicines exactly as prescribed. Call your doctor or nurse advice line if you think you are having a problem with your medicine.
• Physiotherapy can help keep your muscles strong and flexible. You also may get exercises from a doctor who specializes in diseases of the joints.
• Talk to your doctor about an exercise program. Activity is important for your muscles, heart, and lungs. If your doctor says it is okay, you may be able to walk, swim, cycle, or take exercise classes. You also may be able to lift weights.
• If your muscles get very sore, you may want to do less activity or change the type of activity.
• Use canes, crutches, and any other assistive devices to help you get around.
• Do not smoke or allow others to smoke around you. If you need help quitting, talk to your doctor about stop-smoking programs and medicines. These can increase your chances of quitting for good.