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Vasovagal reaction
A vasovagal reaction (also called vasovagal syncope) is sudden dizziness or fainting that can be triggered by pain, fright, or trauma. You may sweat, feel lightheaded, nauseated, or tingly, and you may pass out if the reaction continues.
A vasovagal reaction can happen without serious cause. But vasovagal reactions may be caused by heart problems, epilepsy, or other conditions that require treatment.
A vasovagal reaction can usually be relieved by lying down with your legs elevated. But treatment is necessary if a medical condition is causing the vasovagal reaction.
How can you care for yourself if you have vasovagal syncope?
- Drink plenty of fluids to prevent dehydration. If you have kidney, heart, or liver disease and have to limit fluids, talk with your doctor before you increase your fluid intake.
- Try to avoid things that you think may set off vasovagal syncope.
- Talk to your doctor about any medicines you take. Some medicines may increase the chance of this condition occurring.
- If you feel symptoms, lie down with your legs raised. Talk to your doctor about what to do if your symptoms come back.
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