Antibiotics: When They Help and When They Do Not
Antibiotics are among the most valuable medicines available and are effective only against bacteria. The majority of coughs, colds, sore throats and sinus symptoms are viral, and antibiotics do not shorten them.
Why it matters
Taking antibiotics unnecessarily exposes you to side effects — commonly digestive upset, sometimes serious reactions — without benefit.
It disrupts the normal bacterial population, which can lead to secondary problems.
At population level it drives resistance, meaning the medicines become less effective when genuinely needed. Resistant infections are a documented and growing problem.
Conditions usually viral
The common cold, in essentially all cases.
Most sore throats, though a proportion are bacterial and scoring systems help identify those.
Most acute cough and bronchitis in otherwise healthy adults, which typically lasts around three weeks regardless of treatment.
Influenza, which requires antiviral treatment in specific circumstances rather than antibiotics.
Most sinus symptoms in the first week to ten days.
When antibiotics are appropriate
Confirmed or strongly suspected bacterial infection, based on clinical assessment and sometimes testing.
Certain infections where treatment is standard — urinary tract infections, bacterial pneumonia, cellulitis, some dental infections.
Where the person is at higher risk of complications through age, immunosuppression or chronic disease.
Where symptoms are worsening after an initial improvement, which can indicate a secondary bacterial infection.
Delayed prescribing
A common approach where the clinician judges antibiotics probably unnecessary but wants a safety net.
You receive a prescription with advice to use it only if symptoms worsen or fail to improve within a stated period.
Studies show most such prescriptions are never used, which is the intended outcome, and it maintains access if the situation changes.
Taking them properly
Complete the course as directed. Guidance on duration has been reviewed in recent years and some courses are now shorter than they once were, but the instruction given for your specific prescription is what to follow.
Do not save leftovers for a future occasion, and never take someone else's.
Report significant side effects, particularly rash, breathing difficulty or severe diarrhoea, which need assessment.
Tell the prescriber about allergies and other medications, since interactions are common.
Managing viral illness
Rest, fluids, and symptomatic relief. Time is the treatment.
Seek review if symptoms are severe, if there is breathlessness, if a fever persists beyond a few days, or if the person is very young, elderly or has an underlying condition.
This article is general information and not medical advice. Consult a qualified healthcare professional.
Article Was Generated By AI.