Shaking chills (rigors)
Shaking chills (rigors) are the body's reaction to a severe infection or the release of organisms, such as viruses or bacteria, into the bloodstream. These chills often occur with a high fever and sometimes make teeth chatter or, when severe, can cause uncontrollable shaking that can make a bed vibrate.
Caring for yourself when you have a fever or chills
It's easy to become dehydrated when you have a fever.
In the early stages, you may be able to correct mild to moderate dehydration with home treatment. Here are some things you can do.
- Control fluid losses, and replace lost fluids.
If you become mildly to moderately dehydrated:
- Stop your activity, and get some rest.
- Drink a rehydration drink, water, juice, or a sports drink to replace fluids and minerals.
- Take it easy.
Rest and take it easy for 24 hours. Keep drinking a lot of fluids. You'll probably start to feel better within just a few hours. But it may take as long as a day and a half to completely replace the fluid that you lost.
- Try a shower or bath.
Many people find that taking a lukewarm 80°F (27°C) to 90°F (32°C) shower or bath makes them feel better when they have a fever. Don't try to take a shower if you are dizzy or unsteady on your feet. Increase the water temperature if you start to shiver. Shivering is a sign that your body is trying to raise its temperature. Don't use rubbing alcohol, ice, or cold water to cool your body.
- Dress lightly.
Dress lightly when you have a fever. This will help your body cool down. Wear light pajamas or a light undershirt. Don't wear very warm clothing or use heavy bed covers. Keep the room temperature at 70°F (21°C) or lower.
- Watch for other symptoms.
If you can't measure your temperature, you need to look for other symptoms of illness while you have a fever and are using home treatment.
- Keep checking your temperature.
When you have a fever, check your temperature several times each day.
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