CFS & Fibromyalgia Understanding CFS Heavy Sweating in Fibromyalgia and Chronic Fatigue Syndrome By Adrienne Dellwo Adrienne Dellwo LinkedIn Adrienne Dellwo is an experienced journalist who was diagnosed with fibromyalgia and has written extensively on the topic. Learn about our editorial process Updated on March 02, 2022 Medically reviewed Verywell Health articles are reviewed by board-certified physicians and healthcare professionals. These medical reviewers confirm the content is thorough and accurate, reflecting the latest evidence-based research. Content is reviewed before publication and upon substantial updates. Learn more. by David Ozeri, MD Medically reviewed by David Ozeri, MD LinkedIn David Ozeri, MD, is a board-certified rheumatologist from Tel Aviv, Israel specializing in arthritis, autoimmune diseases, and biologic therapies. Learn about our Medical Expert Board Print Unexplained and excessive sweating is a common problem with fibromyalgia and chronic fatigue syndrome. Excessive sweating is one of those bizarre symptoms that rarely make it onto symptoms lists or grab the attention of researchers. That's understandable since we have much bigger problems. Still, heavy sweating can have a major impact on your life. While healthcare providers and researchers have noted that excessive sweating can be a symptom of these conditions, you may want to talk to your practitioner about complex regional pain syndrome. It has similar symptoms and some research suggests excessive sweating may be more common in that condition. Werayuth Tessrimuang/EyeEm/Getty Images Causes Several factors could be responsible for our sweating, either on their own or in combination. They include: Autonomic nervous system dysfunction Heat sensitivity High norepinephrine levels, as a side effect of antidepressants Anxiety, as a symptom or overlapping condition The only cause that's "curable" is the medication side effect, and that may not be an attractive option to you if the drug is doing more good than harm. However, some medications may help control your sweating, so it's worth bringing up with your healthcare provider. Chronic Fatigue Syndrome Healthcare Provider Discussion Guide Get our printable guide for your next healthcare provider's appointment to help you ask the right questions. Download PDF Email the Guide Send to yourself or a loved one. Sign Up This Doctor Discussion Guide has been sent to {{form.email}}. There was an error. Please try again. Living With Excessive Sweating If you do have to live with this symptom, you may want to keep some items on hand to prevent it from being obvious and embarrassing. Loose powders on your face or other sweaty areas may help absorb sweat before you even know it's there. You can also apply it after drying the sweat off of your skin to keep from being shiny.Oil-absorbing face wipes can keep you from having greasy-looking skin as well. They're generally better than napkins or tissues, which work in a pinch but may be worse for your skin as well as less effective.Dress shields and sweat pads can help absorb sweat before it soaks through your clothing. For especially heavy sweat, a menstrual pad may be your best option.Sweat-absorbing clothes may also be a good option for you. They can be more expensive, though.A hat or ponytail holder can help hide sweat-related hair disasters. You may find that you need to keep a stash of extra clothing in your car, purse, locker, desk, or another convenient place. Preventing Excessive Sweating If your sweating isn't tied to any particular stimulus, you might not be able to keep it from happening. However, if it's tied to heat—and especially our tendency to become overheated—you may find that some of these things reduce the problem. Extra antiperspirant, re-applied a few times during the day, and applied to non-typical places where you tend to sweat a lot may help.Taking cooler baths or showers, or running cool water over your body before you get out, may keep you from getting overheated and sweating more.Especially if you tend to be cold a lot, you may frequently find yourself dressed too warmly for the environment. Dressing in layers gives you more temperature-control options.Choosing cold drinks over hot ones and avoiding hot foods can prevent overheating. Once sweating starts, it may be difficult to stop, so you're better off trying to prevent it in the first place. Dehydration From Excessive Sweating One important thing about excessive sweating is making sure you stay hydrated. It's important to replace both the water and the electrolytes you sweat out. Electrolytes are minerals, including: PotassiumCalciumMagnesium If you think you need to replace electrolytes but don't have a sports drink handy, you can get them via supplements or even through food. It can be hard for us to tell when we're dehydrated because the symptoms can be similar to some we already have. You should make sure to know the symptoms of dehydration. Symptoms of Dehydration Was this page helpful? Thanks for your feedback! Learn about treatment and lifestyle changes to cope with fibromyalgia and chronic fatigue syndrome. Sign Up You're in! Thank you, {{form.email}}, for signing up. There was an error. Please try again. What are your concerns? Other Inaccurate Hard to Understand Submit 4 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Xiong L, Leung TWH. Autonomic dysfunction in neurological disorders. Aging (Albany NY). 2019;11(7):1903–1904. doi:10.18632/aging.101896 Terker AS, Zhang C, McCormick JA, et al. Potassium modulates electrolyte balance and blood pressure through effects on distal cell voltage and chloride. Cell Metab. 2015;21(1):39–50. doi:10.1016/j.cmet.2014.12.006 National Institutes of Health. Fluid and electrolyte balance. Medline Plus. 2016. Ahmed F, Mohammed A. Magnesium: The Forgotten Electrolyte-A Review on Hypomagnesemia. Med Sci (Basel). 2019;7(4):56. doi:10.3390/medsci7040056 Additional Reading Atarowska M, Samborski W. Annales Academiae Medicae Stetinensis. Difficulties with diagnosis of fibromyalgia: case report. 2006;52 Suppl 2:105-10. (Abstract only; article in Polish) Collins S, van Hilten JJ, et al. Development of a symptoms questionnaire for complex regional pain syndrome and potentially related illnesses: the Trauma Related Neuronal Dysfunction Symptoms Inventory. Archives of physical medicine and rehabilitation. 2008 Jun;89(6):1114-20. Demling J, Beyer S, Kornhuber J. To sweat or not to sweat? A hypothesis on the effects of venlafaxine and SSRIs. Medical Hypotheses. 2010 Jan;74(1):155-7 Furlan R, Barbic F, et al. Neural autonomic control in orthostatic intolerance. Respiratory physiology & neurobiology. 2009 Oct;169 Suppl 1:S17-20. Schutz B, von Engelhardt J, et al. Sweat gland innervation is pioneered by sympathetic neurons expressing a cholinergic/noradrenergic co-phenotype in the mouse. Neuroscience. 2008 Oct 2;156(2):310-8.