Melkersson-Rosenthal Syndrome: Causes, Symptoms, and Treatment

Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 23, 2026.

What kind of doctor treats Melkersson-Rosenthal Syndrome?

A neurologist, a doctor who treats nerve problems, often leads care for Melkersson-Rosenthal syndrome. Because the signs overlap with other conditions, you may also see a dermatologist (a skin doctor), an immunologist (an immune system doctor), a gastroenterologist (a digestive system doctor), or an eye doctor. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.

What is Melkersson-Rosenthal syndrome?

Melkersson-Rosenthal syndrome (MRS) is a rare nerve disorder. It causes swelling of the face that keeps coming back, mostly of the lips. It can also cause weak face muscles (palsy) and deep grooves in the tongue. Most people have only one or two of these signs, while some have all three. A related condition, cheilitis granulomatosa, is often seen as a one-sign form of MRS. MRS can affect people of all ages.

Symptoms

The main signs of MRS are:

  • Swelling that returns, often in the upper lip, lower lip, cheeks, or eyelids, and rarely on one side of the scalp.
  • Weakness or paralysis of face muscles (facial palsy), on one side or both sides.
  • Deep grooves or cracks in the tongue, called a fissured tongue.

The first episode of swelling may fade in a few hours or days. Later swelling may be more severe and last longer, and in some people it becomes permanent. Swollen lips can look cracked and may be painful. The swelling looks like angioedema, which is sudden swelling from fluid. But it tends to last longer and resists antihistamines. Some people also have migraines, headaches, dizziness, dry mouth, dry eyes, or trouble swallowing.

Causes and who gets it

Doctors do not know what causes MRS. Some cases have been linked to infections, and herpesviruses may be a cause. Food and other allergens may also play a part. Hormone changes may trigger episodes of swelling. MRS may also be a secondary sign of another condition, such as Crohn's disease or sarcoidosis.

MRS may run in some families, but changes in specific genes have not been shown to cause it. Symptoms most often start in young adulthood, but they can begin later. A few people are diagnosed in childhood. Most reports say MRS affects more females than males. It is likely under-diagnosed, because many people are misdiagnosed.

How doctors diagnose it

Doctors diagnose MRS from an exam and your history. Swelling that stays or returns, plus facial palsy or tongue changes, may be enough for a diagnosis. A lip biopsy may be needed. This means a small piece of tissue is studied under a microscope. It can confirm the diagnosis and rule out infections, repeated angioedema, Crohn's disease, sarcoidosis, or cancers. Special lab tests may be used first to rule out Crohn's disease and sarcoidosis. Doctors suggest follow-up with skin, immune, digestive, and eye specialists to rule out look-alike conditions. A diagnosis can take years because the signs overlap with other common conditions.

Treatment

There is no cure for MRS, and there is no standard method of treatment. Doctors choose treatment largely from reports of other patients, and symptoms can come back even with treatment. Most signs of MRS go away without treatment. But episodes may happen more often and last longer without it. Treatment may include steroid shots, anti-inflammatory medicines, antihistamines, and antibiotics. Some people get short courses of immunosuppressants, medicines that calm the immune system. Surgery or radiation is sometimes recommended to reduce swollen lips. If facial paralysis keeps coming back, surgery may be needed to ease pressure on the facial nerves.

When to see a doctor

See a doctor if your face or lips swell again and again, or if the weakness in your face muscles keeps coming back. Children with repeated facial palsy should be checked for MRS.

Call 911 or go to the emergency room if you have trouble breathing, choking, fainting, swelling of the tongue, or sudden weakness (including in the face or one arm), trouble speaking, or a sudden change in vision.

How a direct primary care or concierge doctor fits in

A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can examine you, order basic tests, and help you keep track of swelling episodes over time. Because MRS can take years to diagnose, they can also help coordinate visits with the specialists above.

Common questions

Can Melkersson-Rosenthal syndrome be cured?

No, there is no cure for MRS. Symptoms can be treated, and most signs go away without treatment.

Is Melkersson-Rosenthal syndrome the same as Bell's palsy?

No, they are different conditions, although both can cause facial weakness. MRS also causes repeated swelling and tongue grooves, and facial palsy in MRS can come back. It is linked to a worse outlook than Bell's palsy.

Does Melkersson-Rosenthal syndrome run in families?

It may, but this is not certain. Changes in specific genes have not been shown to cause the condition.

Does the facial swelling go away on its own?

It can, at least at first. Later episodes may be worse and last longer, and in some people the swelling becomes permanent.

Sources

  1. National Organization for Rare Disorders (NORD) - Melkersson-Rosenthal Syndrome
  2. PubMed Central (National Library of Medicine) - Melkersson-Rosenthal syndrome: a therapeutically challenging disease

Medical Disclaimer

This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.