Fever Does Not Always Mean You Need Antibiotics

Fever does not always require antibiotics.

Viral fever does not respond to antibiotics.

Antibiotic misuse can increase resistance.

As the monsoon sets in, complaints of fever, cold, cough and weakness become common. Seasonal illnesses can include influenza, dengue, malaria, typhoid, chikungunya, leptospirosis and scrub typhus. Since several of these conditions can begin with similar symptoms, identifying the actual cause is more important than simply trying to bring the fever down.

Fever itself is not a disease. It is a sign that something is happening in the body, which could be an infection or another health problem. That is why reaching for an antibiotic at the first sign of fever is not a good idea.

The biggest misunderstanding is about viral infections. Antibiotics are designed to fight bacteria and do not treat viruses such as those responsible for influenza and many other viral illnesses. Dengue, for example, is a viral infection and does not normally call for antibiotics. If a bacterial infection occurs alongside a viral illness, a doctor may prescribe an antibiotic based on the diagnosis.

Different infections also need different treatments. Malaria requires appropriate antimalarial medicines, while bacterial infections may require a specific antibiotic depending on the bacteria involved, the severity of the illness and the patient’s condition. There is no single antibiotic that works against every infection. The World Health Organization also advises against unnecessary antibiotic use because misuse and overuse are major drivers of antimicrobial resistance.

Self medication is one reason antibiotics are often used incorrectly. Some people keep leftover tablets at home and take them when a similar symptom appears. Others may believe that a stronger medicine will make the fever disappear faster. But an unnecessary antibiotic can cause side effects such as nausea, diarrhoea, stomach discomfort and allergic reactions.

The larger concern goes beyond these immediate side effects. When antibiotics are used unnecessarily or incorrectly, bacteria can develop resistance to medicines that once worked against them. This can make future bacterial infections more difficult to treat. WHO reported that one in six laboratory confirmed bacterial infections associated with common infections worldwide was resistant to antibiotic treatment in 2023.

So what should someone do when a fever starts? Rest and adequate fluids are important, while medicines to manage fever should be taken according to appropriate medical advice. The duration of the fever, accompanying symptoms, physical examination and illnesses circulating in the area can help a doctor decide whether testing is needed.

Depending on the situation, a doctor may recommend blood tests such as a complete blood count or dengue testing. Many uncomplicated viral fevers improve within a few days, but persistent or worsening fever deserves medical assessment rather than repeated self medication.

Certain warning signs should not be ignored. Breathing difficulty, repeated vomiting or diarrhoea, bleeding, severe abdominal pain, confusion, very low urine output, inability to drink enough fluids or extreme weakness require prompt medical attention.

The simple message is worth remembering during the rainy season. Fever alone is not a reason to start antibiotics. Finding the cause first and using the right treatment under medical guidance is safer for the individual and also helps protect antibiotics for situations where they are genuinely needed.