Antibiotics Guide: When You Need Them and When You Don't
Understanding antibiotics—when they're effective, when they're not, and the risks of overuse. Essential patient guide to antibiotic stewardship.
Antibiotics Guide
When You Need Them and When You Don't
Understanding Antibiotics
Antibiotics treat bacterial infections, not viral illnesses. Using antibiotics for viruses contributes to antibiotic resistance—one of the world's most serious health threats. Understanding when antibiotics help and when they don't protects both your health and public health.
Antibiotic resistance occurs when bacteria evolve to withstand antibiotics. Misuse accelerates this process. Responsible use preserves these life-saving drugs.
Antibiotics Treat Bacteria Only
Illnesses NOT Helped by Antibiotics
Common Cold
Caused by viruses—antibiotics won't help
✓ Symptoms last 7-10 days. Treatment is rest, fluids, symptom relief.
Influenza (Flu)
Viral infection
✓ Antiviral medications may help in some cases. Vaccination prevents most cases.
Acute Bronchitis
Usually viral chest cold
✓ Cough can last weeks. Antibiotics rarely help unless bacterial infection is confirmed.
Most Sinus Infections
Usually viral, resolve without antibiotics
✓ Antibiotics only for persistent or severe bacterial sinus infections.
Most Sore Throats
Most are viral, not strep
✓ Strep test confirms bacterial infection. Don't take antibiotics for viral sore throat.
COVID-19
Caused by SARS-CoV-2 virus
✓ Antibiotics don't treat COVID. May be used for secondary bacterial infections.
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Common Symptoms
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Warning Signs (Seek Care)
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Using Antibiotics Responsibly
Don't Demand Antibiotics
Let your doctor decide if you need them. Asking for antibiotics when they're not needed contributes to resistance.
Get Tested When Appropriate
Strep tests, urine cultures, and other tests confirm bacterial infections before antibiotics are prescribed.
Take Exactly as Prescribed
Don't skip doses, don't stop early. Complete the full course even if you feel better. This prevents resistant bacteria.
Don't Share or Use Leftovers
Leftover antibiotics are never the complete treatment. Sharing spreads resistance and may harm the other person.
Ask About Narrow-Spectrum Options
Narrow-spectrum antibiotics target specific bacteria. Broad-spectrum antibiotics kill more bacteria and contribute more to resistance.
Report Side Effects
Antibiotics can cause serious side effects including C. difficile infections. Report severe diarrhea, rash, or other concerning symptoms.
Prevent Infections When Possible
Vaccinations, hand washing, safe food handling prevent infections that might require antibiotics.
Don't Use Antibiotics for Prevention
Except in specific medical circumstances. Routine antibiotic prophylaxis contributes to resistance.
Antibiotic Resistance Facts
30%
Of outpatient antibiotics are unnecessary
2.8M
Antibiotic-resistant infections annually in the US
35K
Deaths annually from resistant infections
Frequently Asked Questions
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