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Medically reviewed by Last updated on Apr 2, 2024.

What is dermatomyositis?

Dermatomyositis (DM) is a muscle disease that causes inflammation and a skin rash.

What causes DM?

The cause of DM may not be known. It may be caused by a virus. Problems with your immune system may cause this disease. DM may cause your immune system to attack your muscle tissues.

What are the signs and symptoms of DM?

How is DM diagnosed?

How is DM treated?

You may need medicines to decrease pain, rash, swelling, and itching. You may also need medicine to slow the attack on your muscles by your immune system.

Treatment options

The following list of medications are related to or used in the treatment of this condition.

View more treatment options

How can I manage my symptoms?

How should I protect my skin?

When should I contact my healthcare provider?

When should I seek immediate care or call 911?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.