How many tablets of azithromycin you have to cure bacterial infection and for how many days
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azithromycin AND bacterial infection
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FDA azithromycin prescribing information dosage warnings bacterial infection
There is no single correct number of azithromycin tablets or days for “a bacterial infection.” It depends on the confirmed infection, your age/weight, tablet strength (usually 250 mg or 500 mg), allergies, heart rhythm risks, liver disease, pregnancy, and local antibiotic resistance.
For some adult infections, doctors may prescribe a 3-day or 5-day course, but that is not appropriate for every infection. Do not start azithromycin, use leftovers, or copy someone else’s regimen. It does not treat viral illnesses such as most colds or flu, and unnecessary use can cause resistance. The FDA prescribing information states that the dose and duration vary by infection and it should be used only for proven or strongly suspected susceptible bacterial infections.
If it was prescribed to you:
- Take exactly the dose and duration on the pharmacy label.
- Finish the prescribed course unless a clinician tells you to stop.
- Do not double a missed dose.
- Get urgent help for facial/throat swelling, trouble breathing, fainting, or a fast/irregular heartbeat.
Tell me the infection diagnosed, your age, and the tablet strength written on the package, and I can help interpret the prescription label, but a prescriber should choose the regimen.
Runny nose, throat pain, watery eyes.
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common cold AND treatment
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CDC common cold symptoms antibiotics not needed sore throat runny nose watery eyes
Those symptoms are more consistent with a viral cold or allergies than a bacterial infection. A runny nose and watery eyes are uncommon in strep throat, and viruses are the most common cause of sore throat. The medical text notes that cold symptoms commonly include runny nose, congestion, conjunctivitis/watery eyes, and sore throat. Antibiotics such as azithromycin will not help a viral cold and should not be taken without a clinician’s diagnosis. The CDC cold guidance and sore throat guidance say most cases improve without antibiotics.
What you can do:
- Drink fluids, rest, and use warm drinks or salt-water gargles for throat pain.
- Use paracetamol/acetaminophen or ibuprofen for pain or fever if you can take them safely.
- If the eyes are itchy as well as watery, allergies are possible. Avoid triggers and ask a pharmacist about an antihistamine or allergy eye drops.
- Consider a COVID-19 test, especially after exposure, fever, body aches, cough, or if you are at higher risk of severe illness.
Seek medical care promptly for trouble breathing, inability to swallow liquids, severe dehydration, chest pain, a persistent high fever, one-sided throat swelling, pus on tonsils with fever and no runny nose/cough, or symptoms that worsen or do not improve after about 7-10 days.
Itchy ears also
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allergic rhinitis AND ear symptoms
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allergic rhinitis itchy ears watery eyes runny nose guidance
Itchy ears, along with a runny nose and itchy/watery eyes, makes allergic rhinitis (hay fever) more likely than a bacterial infection. Ear, nose, throat, and eye itching can occur with allergies. AAAAI guidance lists itchy watery eyes, runny nose, and itching as typical symptoms.
Do not take azithromycin for this unless a clinician finds a bacterial infection.
You can try:
- Avoid likely triggers for a few days: dust, smoke, perfume, pets, pollen.
- Saline nasal spray/rinse.
- A non-drowsy antihistamine such as cetirizine, loratadine, or fexofenadine, following the package directions and checking with a pharmacist if you are pregnant, have kidney/liver disease, glaucoma, prostate/urinary problems, or take other medicines.
- If symptoms persist or recur, a steroid nasal spray such as fluticasone can help, but takes several days of daily use to work well.
Do not put cotton buds, oils, or random ear drops into the ears. Seek medical assessment if you develop ear pain, hearing loss, discharge, fever, swelling/redness of the outer ear, or if symptoms are severe or last over 1-2 weeks.
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