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Fever

FEVER

A fever is a temporary increase in your body temperature, often due to an illness. Having a fever is a sign that something out of the ordinary is going on in your body. For an adult, a fever may be uncomfortable, but usually isn't a cause for concern unless it reaches 103 F (39.4 C) or higher. A part of your brain called the hypothalamus controls your body temperature. In response to an infection, illness, or some other cause, the hypothalamus may reset the body to a higher temperature. So when a fever comes on, it’s a sign that something is going on in your body.

  1. Sweating
  2. Chills and shivering
  3. Headache
  4. Muscle aches
  5. Loss of appetite
  6. Irritability
  7. Dehydration
  8. General weakness

Infant:

  1. Younger than age 3 months and has a rectal temperature of 100.4 F (38 C) or higher.
  2. Between ages 3 and 6 months and has a rectal temperature up to 102 F (38.9 C) and seems unusually irritable, lethargic or uncomfortable or has a temperature higher than 102 F (38.9 C).
  3. Between ages 6 and 24 months and has a rectal temperature higher than 102 F (38.9 C) that lasts longer than one day but shows no other symptoms. If your child also has other signs and symptoms, such as a cold, cough or diarrhea, you might call your child's doctor sooner based on severity.

Children

  1. Is listless or irritable, vomits repeatedly, has a severe headache or stomachache, or has any other symptoms causing significant discomfort.
  2. Has a fever after being left in a hot car. Seek medical care immediately.
  3. Has a fever that lasts longer than three days.
  4. Appears listless and has poor eye contact with you.

Adults

  1. Severe headache
  2. Unusual skin rash, especially if the rash rapidly worsens
  3. Unusual sensitivity to bright light
  4. Stiff neck and pain when you bend your head forward
  5. Mental confusion
  6. Persistent vomiting
  7. Difficulty breathing or chest pain
  8. Abdominal pain or pain when urinating
  9. Convulsions or seizures
Fever Causes

The most common causes: 

  • Infections of the ear, lung, skin, throat, bladder, or kidney
  • Heat exhaustion
  • COVID-19
  • Sunburn
  • Blood clots
  • Autoimmune conditions such as lupus and inflammatory bowel disease (IBS)
  • Cancer
  • Hormone disorders such as hyperthyroidism
  • Conditions that cause inflammation, such as rheumatoid arthritis
  • Side effects of medications
  • Vaccines and immunizations
Complications

Children between the ages of 6 months and 5 years may experience fever-induced convulsions (febrile seizures), which usually involve loss of consciousness and shaking of limbs on both sides of the body.

If a seizure occurs:

  • Lay your child on his or her side or stomach on the floor or ground
  • Remove any sharp objects that are near your child
  • Loosen tight clothing
  • Hold your child to prevent injury
  • Don't place anything in your child's mouth or try to stop the seizure

Most seizures stop on their own. Take your child to the doctor as soon as possible after the seizure to determine the cause of the fever.

Fever Diagnosis

Although a fever is easy to measure with a thermometer, finding its cause can be hard. Besides a physical exam, your doctor will ask about symptoms and conditions, medications, and if you've recently traveled to areas with infections or have other infection risks.

Your doctor may ask if you have been around someone with COVID-19 or have any other symptoms of COVID-19.

Sometimes, you may have a "fever of unknown origin." In such cases, the cause could be an unusual or not obvious condition such as a chronic infection, a connective tissue disorder, cancer, or another problem.

Homoeoepathic medications:
  1. Arsenicum album

    A person who needs this remedy during flu feels chilly and exhausted, along with an anxious restlessness. The person may be thirsty, but often only takes small sips. If the digestive system is involved, nausea with burning pain, or vomiting and acrid diarrhea may occur. If the flu is respiratory, a watery, runny nose with sneezing paroxysms and a dry or wheezing cough are often seen. The person's head usually feels hot, while the rest of the body is chilly.

  2. Belladonna

    This remedy relieves high fever of sudden onset with profuse sweating, and hypersensitivity to light and noise.

  3. Bryonia alba

    This relieves high fever with body aches improved by staying immobile.

  4. Eupatorium perfoliatum

    This remedy relieves bone pains and body aches associated with flu and severe colds. Increased thirst .

  5. Ferrum phosphoricum

    This relieves low-grade fever with weakness and tendency to nosebleeds and earaches.

  6. Gelsemium

    This remedy relieves flu-like symptoms with fever, headache, dizziness and general weakness. Thirst less.

  7. Nux vomica

    When this remedy is indicated in influenza, the person may have have high fever, violent chills, strong nausea and cramping in the digestive tract (or a painful cough and constricted breathing if the flu is respiratory). Headache usually occurs, along with oversensitivity to sound, bright light, and odors. A person who needs Nux vomica is often very irritable, feeling worse from exertion and worse from being cold in any way.

  8. Rhus toxicodendron

    This remedy relieves fever with restlessness: The patient is continuously moving to find a comfortable position and relieve the body aches. 

  9. Other Remedies
  10. Aconitum napellus

    This remedy relieves high fever of sudden onset, with a hot face and dry skin. Anxious .

  11. Apis mellifica

    This remedy may be helpful if a person has dry fever that alternates with sweating, facial flushing, and a very sore throat with swollen tonsils. Pain may extend to the ears, and the eyelids may be swollen. Exposure to cool air and cold applications may bring relief. Despite the fever, thirst usually is low. The person can be very irritable, disliking interference.

  12. Phosphorus

    When this remedy is needed during flu, the person has a fever with an easily-flushing face, and feels very weak and dizzy. Headache, hoarseness, sore throat, and cough are likely. If the focus is digestive, stomach pain and nausea or vomiting usually occur. A person who needs this remedy often has a strong anxiety, wanting others to be around to offer company and reassurance. Strong thirst, with a tendency to vomit when liquids warm up in the stomach, is a strong indication for Phosphorus.

  13. Sulphur

    This remedy may be useful if a flu is very long-lasting or has some lingering symptoms—often after people have neglected to take good care of themselves. Symptoms, either digestive or respiratory, will often have a hot or burning quality. The person may feel hot and sweaty, with low fever and reddish mucous membranes. Heat aggravates the symptoms, and the person often feels worse after bathing.