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Learn more about what a fever is and its causes. This site is intended for US residents only. All rights reserved. OK Cancel. Bosnia and Herzegovina. Czech Republic. United States English. Search Submit. Hot Liquid powders Syrup Caplets. All Theraflu products. Cold Flu. Frequently asked questions. What are the chills? What causes fever with chills? What causes chills but no fever? Yes, it can be that simple. Select personalised content.
Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Fevers are often accompanied by chills—shaking, shivering, and feeling cold. This odd sensation of feeling like you are overheating and freezing at the same time occurs because of the sharp contrast between your environment and your body: When your body temperature is higher than normal, the air and environment around you will feel colder than it usually does.
As a result, muscles rapidly contract and relax in an effort to produce body heat, which you experience as "the chills. Chills tend to be more common in children and typically occur at the start of an illness such as the flu. A fever is the body's natural reaction to infection. When a virus or bacteria invades, one of the immune system's defenses is to raise the body temperature since pathogens are less able to multiply at temperatures greater than Your first reaction to discomfort may be to put on more clothes or blankets to get warm.
The problem with doing this is that bundling up will increase your body temperature further, possibly perpetuating discomfort and contributing to dehydration.
The physical act of shivering or shaking due to chills itself can also raise your internal body temperature. Figuring out how to get comfortable and also bring your temperature down can be a bit of a balancing act. There is no need to take ice baths, remove clothing, or do anything else that causes discomfort. If the fever is very high and does not respond to medication, or if a person has other symptoms of severe illness — such as a stiff neck, confusion, or difficulty breathing — contact a doctor or go to the emergency room.
Most fevers, even high fevers, are not dangerous. Treating a fever will not cure the underlying illness, and many doctors argue that treating a fever serves no medical purpose. In fact, there is little scientific evidence supporting the treatment of fevers. One paper argues that for minor infections that are likely to go away on their own, treating a fever is probably harmless. There are some exceptions to this rule, however.
People with weak immune systems due to having cancer, having HIV, or taking immunosuppressant drugs should contact a doctor right away for a fever. Sometimes, the symptoms that accompany a fever offer a clue about its cause.
For example, a person who has a fever and an earache may have an ear infection. It is not always possible to self-diagnose, however. People who have reactions to medications that cause fevers may develop other symptoms of illness, such as muscle pain or a runny nose.
Learn more about the symptoms of a fever here. Often, the best strategy for preventing fevers is to prevent the infections that cause them. The following tips may help:. A fever can be very unpleasant, and it may cause painful symptoms — even when the cause is a relatively minor illness.
Although the infections that cause fevers can be dangerous, fevers themselves are rarely dangerous. People should aim to focus on self-care and comfort strategies, such as getting warm, resting, and drinking plenty of fluids.
Taking a fever medication may ease the symptoms and help a person rest better. Most fevers will go away on their own. However, if the accompanying symptoms are very severe, get worse, or do not resolve within a few days, contact a doctor. A person can treat a fever at home using medication and other methods.
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