In the case of fever, the body temperature is elevated above normal. With this heating up, the body defends itself against harmful influences such as invading pathogens. But malignant tumors and inflammatory autoimmune diseases also produce fever. Normal body temperature not only varies from person to person, but is also subject to its own daily rhythm. It is lowest at night around two o'clock, but then rises slowly even before waking up to reach its peak in the afternoon. Fluctuations of more than one degree may occur. On average, the normal body temperature ranges between 36.0 and 37.4 degrees Celsius (measured rectally). However, even here, depending on the accuracy of the measurement method, slightly different values are sometimes given.
When you have a fever with a cold, it usually progresses in three phases - presuming there are no complications: In the first phase, the fever rises to a certain temperature. In the second phase, the temperature reached is maintained. In the third phase, the fever drops back to normal temperature. This can happen within a few hours, but can also take a few days. Accompanying symptoms of fever are often a general feeling of illness with complaints such as fatigue, exhaustion, loss of appetite and headache.
It is recommended to avoid physical exertion and get rest. Since you lose fluid through sweating, make sure to drink enough. If the temperature is between 39 and 40°C, you can reduce the fever with calf wraps or with paracetamol. The cloths are cooled with normal cold tap water and wrapped tightly around the calves of the outstretched legs. A dry cloth is placed over them. The calf wraps remain on for 5 minutes and should be repeated 2 to 3 times. Be careful not to lower the temperature too quickly, as this could put too much strain on the circulation. It is also important to keep the feet and the rest of the body warm. People with fever need more fluids than normal. You should therefore drink plenty of fluids when you have a fever. As a rule of thumb, for each degree above 37°C, the body needs an additional half to one liter of fluid daily, preferably water or unsweetened fruit teas. Add this amount to the normal amount you drink (about 1.5 to 2.5 liters per day).
A detailed medical history, the course of the fever, a thorough physical examination, and, depending on the suspected diagnosis, imaging examinations of the internal organs, the ear, nose, and throat, or the musculoskeletal and nervous systems, plus blood tests: this is how the possible causes can be narrowed down. Special antibody tests often help to track down the cause. It may also be possible to detect suspected pathogens under the microscope, to cultivate them from the blood (blood cultures, see chapter "Diagnosis in fever") or to identify their genetic material. Sometimes a test for tuberculosis helps further (for example, skin test, also tuberculin test). Unfortunately, sometimes no cause is found despite all efforts. If it remains unknown and the fever persists for more than three weeks with values above 38 °C, it is a fever of unclear origin.
Lemons are true vitamin C bombs and thus strengthen the immune system.ginger is a natural anti-inflammatory, which also has an analgesic effect.
Thyme's highly effective essential oil, tannins and flavonoids are a perfect remedy against flu's when mixed with boneset leaves.
The infusion mix has heating properties. Drinking it will help lower your body temperature and reduce sweating.
Caution Do not take yarrow during pregnancy.
The bitter substances of gentian and wormwood have both invigorating (tonic) and balancing effects on the immune system and reduce fever.
Caution Do not take wormwood during pregnancy.