Colds and fevers are caused by abnormal function of the thermoregulatory center.
Colds are caused by viruses, but can be complicated or secondary to bacterial infections. The metabolites of these pathogens or their toxins can act on white blood cells to release pyrogens, leading to abnormal functioning of the thermoregulatory center, causing the thermoregulatory point to rise, and thus causing a fever.
When you have a cold or fever, you should pay attention to monitoring your body temperature. If your body temperature does not exceed 38 degrees Celsius, you should drink plenty of warm water, and you can also cooperate with physical cooling, such as rubbing your body with warm water or alcohol, etc. If your body temperature exceeds 38 degrees Celsius, you can drink more warm water. If the temperature exceeds 38 degrees Celsius, you can take oral antipyretic drugs such as ibuprofen, acetaminophen, etc. Note that these drugs are prohibited for people who are allergic to them, pregnant women, breastfeeding, and people with severe liver dysfunction.
If the temperature does not go down repeatedly, you should consult a doctor for appropriate treatment.