Son is 6 months old, fever is 38.4°C, is the problem serious?

Patient's question:

Detailed medical condition and consultation purpose: Fever

Doctor's answer:

Hello: It is best to seek active treatment. The child has a fever, and the parent's mind must not be affected by the fever. Stay calm, don't panic, and don't handle things randomly. Follow these steps in order:
1. Analyze the cause of the fever: Most fevers are caused by infections, with viruses being the most common, such as colds, influenza, measles, roseola, and epidemic mumps. The second most common are bacterial infections, such as tonsillitis, scarlet fever, and meningitis. Parasitic infections can also cause fever, such as malaria and kala-azar, but they are relatively rare. Non-infectious fevers include heatstroke, dehydration, leukemia, tumors, trauma, or post-surgical conditions. There are also diseases that impair heat dissipation, such as generalized ichthyosis and hypohidrosis. Of course, it may sometimes be difficult to distinguish, but once the situation is clear, it can provide the doctor with reference.
2. Observe the type of fever: Use a household thermometer to accurately measure the axillary temperature and keep a record. Below 37 degrees Celsius is normal, below 38 degrees is a low fever, between 38 and 39 degrees is a moderate fever, and above 39 degrees is a high fever. Also, observe how long the fever has lasted and what other symptoms accompany it.
3. Don't overuse antibiotics: Many households keep antibiotics on hand, and as soon as the child has a fever, they immediately give them various antibiotics. This is not appropriate. First, most antibiotics are ineffective against viruses and can instead suppress the body's immune function. Second, fever itself is a normal response of the body's disease-fighting ability to eliminate pathogens. If you use medication to kill bacteria and viruses, it will affect the proliferation of phagocytes and the production of antibodies.

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