Erythromelalgia explained: burning, red, hot hands and feet

What erythromelalgia is

Erythromelalgia affects the small blood vessels and nerves of the extremities, usually the feet and sometimes the hands. During an episode, the affected area becomes visibly red and feels hot, and there is a strong burning pain. This is thought to relate to changes in blood flow and to over-sensitive nerves in the affected part, though the condition is not fully understood. It can occur on its own, sometimes running in families, or alongside another underlying condition. The name comes from Greek words meaning red, limb and pain, which captures the three key features. Although it is rare, it is a recognised condition, and understanding it helps people make sense of symptoms that can otherwise be very puzzling.

Symptoms and triggers

The hallmark of erythromelalgia is episodes of burning pain with redness and heat in the affected area, most commonly the feet. Attacks are often triggered or worsened by warmth — a warm room, exercise, wearing socks or shoes, or being under bedcovers at night — and are typically eased by cooling the area down. Some people get frequent, prolonged episodes, while others have occasional attacks. The relief that cooling brings can lead people to use cold water or fans, but very cold immersion for long periods can damage the skin, so it needs care. The pattern of warmth triggering symptoms and cooling relieving them is quite characteristic and can help point towards the diagnosis.

How it is diagnosed

There is no single simple test for erythromelalgia; the diagnosis is usually made from the typical story and appearance — episodes of red, hot, burning extremities triggered by warmth and relieved by cooling. A doctor will take a careful history and examine you, and may sometimes see or ask you to photograph the redness during an attack, since the extremities can look normal between episodes. Because erythromelalgia can occasionally be linked to other conditions, your doctor may arrange blood tests or other investigations to check for an underlying cause. You may be referred to a specialist, such as a dermatologist, neurologist or pain service. Reaching the diagnosis can take time, so a clear description of your symptoms is very helpful.

Managing the condition

Management focuses on avoiding triggers and easing symptoms, and is tailored to the individual. Simple measures include keeping the affected area cool, avoiding excessive heat, wearing loose, breathable footwear, and gentle cooling during an attack — but not prolonged icing or very cold water, which can harm the skin. Where an underlying condition is found, treating it can help. Various medicines are used to try to reduce the burning nerve pain or influence blood flow, and a specialist can discuss which options might suit you. Because the condition varies so much, finding what works often takes some trial and adjustment. Support for the emotional impact of living with an unpredictable, painful condition is also valuable and worth asking about.

Living with erythromelalgia

Living with erythromelalgia often means learning your own triggers and finding practical ways to reduce and cope with attacks. Planning around heat, choosing cooler environments and clothing, and having a strategy for episodes can all help you stay active. It is important to protect the skin: relying on constant cold water or ice can cause damage over time, so gentler cooling is safer. Keep in touch with your care team, especially if symptoms change or worsen, or if new symptoms appear elsewhere, as this may prompt a review. Connecting with patient organisations and others who have the condition can provide both practical tips and reassurance that you are not alone in dealing with a rare and sometimes misunderstood problem.