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why do the bottom of my feet burn at night

Important It is possible that the main title of the report is not the name you expected. Please check the
listing to find the alternate name(s) and covered by this report. primary erythromelalgia, familial Erythromelalgia is a rare condition that primarily affects the feet and, less commonly, the hands (extremities). It is characterized by intense, burning pain of affected extremities, severe redness (erythema), and increased temperature that may be episodic or almost continuous in nature. (The prefix "erythro-" denotes redness, "mel-" is a combining form meaning limb or limbs, and the suffix "-algia" indicates pain. ) Although erythromelalgia typically affects both sides of the body (bilateral), it may sometimes involve only one side (unilateral). In addition, the disease course may be extremely variable from case to case. For example, in some individuals, symptom onset may be gradual (insidious), with the condition potentially remaining relatively mild for years. However, in others, it may have a sudden (acute) onset, possibly spreading and becoming severe over weeks.

The specific underlying cause of erythromelalgia remains unknown. However, the condition is thought to result from vasomotor abnormalities or dysfunction in the normal narrowing (constriction) and widening (dilation) of the diameter (caliber) of certain vessels, leading to abnormalities of flow to the extremities. Erythromelalgia may be an isolated, primary condition or occur secondary to various underlying disorders. Primary erythromelalgia may appear to occur randomly for unknown reasons (sporadically) or may be familial, suggesting autosomal dominant inheritance. NIH/National Institute of and Musculoskeletal and Skin Diseases Bethesda, MD 20892-3675 Email: Internet: http://www. niams. nih. gov/ Erythromelalgia Association Wallingford, PA 19086 Email: Internet: http://www. erythromelalgia. org Genetic and Rare Diseases (GARD) Information Center Gaithersburg, MD 20898-8126 Internet: http://rarediseases. info. nih. gov/GARD/ This is an abstract of a report from the National Organization for Rare Disorders (NORD).

A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www. rarediseases. org and click on Rare Disease Database under "Rare Disease Information". This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information. Copyright 2011 National Organization for Rare Disorders, Inc. You feel burning because the nerves in your feet have been affected by your diabetes. "Painful neuropathy" is a term used to describe diabetic feet that are painful without an obvious cause.

People with painful neuropathy usually describe a "pins and needles" sensation or a dull burning in the feet and legs that is more apparent at night (when there are few other things to distract you). You may also experience frequent leg cramps. Because painful neuropathy is difficult to cure once it is established, the best treatment is to prevent it by controlling your blood glucose. These nerve problems occur more frequently in men and in people who have had diabetes for many years, are tall, smoke, or have poor blood glucose control. If you already have painful neuropathy, there are treatments available that provide some relief for about 50% of people. These treatments include the use of antidepressant medicines, certain heart medications, and creams made from chili peppers (capsaicin). These creams are rubbed on the feet to desensitize them. If you do not get relief from one of these treatments, the good news is that the pain from this neuropathy often lessens over time.

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