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Doctor insights on: How Long After Starting Antibiotics For Strep Throat Are You Contagious

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Docs, usually how long is strep throat contagious?

Docs, usually how long is strep throat contagious?

Contagious: You will be contagious until you have been on antibiotics for at least 24 hours and for up to 3 weeks if you are not treated with antibiotics. ...Read more

Dr. John Leander Po
1,117 doctors shared insights

Antibiotic (Definition)

An antibiotic is a medicine that slows, stops, or kills germs. The germs are usually bacteria causing an infection in a person, so the person uses antibiotics to help his body get ...Read more


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How long does strep throat stop being contagious?

How long does strep throat stop being contagious?

Treated vs not: Most accept 24 hours on meds as the point where someone is no longer contagious to others through passive contact. Untreated patients may be continuously contagious. ...Read more

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How long before the strep throat antibiotic shot is recieved will i feel better?

How long before the strep throat antibiotic shot is recieved will i feel better?

Antibiotics: It won't be immediate, but usually within 1-2 days, you should start to feel some improvement. If you don't, you should be seen by your provider. In this case, your infection could possibly resistant to the antibiotics and you would need to be given another one. ...Read more

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Strep throat, when will i no longer be contagious if it's been a week now?

Strep throat, when will i no longer be contagious if it's been a week now?

48 hours: You are not contagious after 48 hours from the start of your antibiotics. In rare instances if you have severe tonsillitis, the contagiousness could last a little longer, or if you develop an abcess. However, you need to finish the full course of antibiotics to prevent recurrences and to prevent development of resistant bacteria in your system. ...Read more

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For how long is someone with strep throat contagious BEFORE they develop and start showing symptoms?

For how long is someone with strep throat contagious BEFORE they develop and start showing symptoms?

2 - 5 Days: "Strep throat" is caused by a bacterial infection with Group A Streptococcus. The period between intial infection with bacteria and appearance of symptoms is 2 to 5 days. This called the Incubation period. Because this an infection that requires antibiotic treatment see your doctor for symptoms of fever, sore throat, rash. ...Read more

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How long does strep throat last with anti-biotics (co-amoxiclav) I almost have it for 3 days and the pain is still there?

How long does strep throat last with anti-biotics (co-amoxiclav) I almost have it for 3 days and the pain is still there?

Wait about 3 days: Streptococcus should respond to Augmentin (amoxicillin and clavulanate) within a week. However, if you do not get better, have a culture and sensitivity performed from a throat culture. That is the only scientific method to determine if the antibiotic will be successful. ...Read more

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I am a cosmetology master instructor, I have a student w strep throat 31 yrs old her 3rd time with strep throat, fever. How long is she contageous?

I am a cosmetology master instructor,  I have a student w strep throat  31 yrs old her 3rd time with strep throat, fever.  How long is she contageous?

She may not be.: Recurrent strep infections can mean the patient is colonized with the bacteria in her throat. You may not be at risk...But good hand washing and wearing gloves can be helpful to avoid infection yourself. If you smoke, stop and she could cover her face with a mask while working. Hope that helps. ...Read more

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Whats the best antibiotic for strep throat?

Whats the best antibiotic for strep throat?

Penicillin still #1: Despite being the oldest antibiotic, it is still the medicine of choice for treating strep throat infection. It is not 100%, but still the "standard of care." it is sometime not used because of penicillin allergies or because of younger age (adolescent/teen-more difficult with schedule--school/sports etc) due to required frequency of use --4x/day for 10 days.. Good luck. ...Read more

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What can you take for antibiotic resistant strep throat?

What can you take for antibiotic resistant strep throat?

Strep Throat: strep throat is rarely resistant to antibiotics. In case of resistant, high dose amoxil or augmentin, (amoxicillin and clavulanate) based on 90mg/kg/day can help to over come the resistant strain ...Read more

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Is zinnat 500mg a good antibiotic for strep throat? Thanks

It will work: Zinnat, Cefuroxime is effective against the Streptococcus that causes sore throat. Quite often Strep throat doesn't need antibiotics. If it does, Penicillin V is also effective in doses of 250-500mgs four times a day. It is probably the only indication left for oral penicillin . ...Read more

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Positive strep throat culture, is floxacin an antibiotic for this?

Positive strep throat culture, is floxacin an antibiotic for this?

Not one I would use: This class of drugs have a broad range of effects against many types of germs but i find no listing for strep throat..It is not used in kids and rarely used in most simple infections. Since strep is universally sensitive to the penicillins, and other inexpensive medications, it is one i would never use for strep throat. ...Read more

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I'm taking an antibiotic for strep throat. I take it at 10 AM 3 PM and then 8 PM is it OK regiment ?

I'm taking an antibiotic for strep throat. I take it at 10 AM 3 PM and then 8 PM is it OK regiment 
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Yes: Taking ? Amoxicillin twice daily is the recommended interval, based on its metabolism. Taking it three times a day will not hurt but is not necessary. All the best. ...Read more

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Can you catch strep throat from someone if they don't have a fever yet? It was caught early & the fever hadn't developed yet. Is it still contagious?

Can you catch strep throat from someone if they don't have a fever yet? It was caught early & the fever hadn't developed yet.  Is it still contagious?

Yes: You can have strep without fever; someone with strep is contagious for about a day before symptoms start until 24-36 hours after appropriate antibiotics are started. ...Read more

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Can you tell me how contagious is strep throat?

Can you tell me how contagious is strep throat?

Very contagious: Don't kiss cough or share eating utensils with people. Wash your hands often. Gargle with listerine without alcohol several times per day. Use a saline nose spray. If not better in a few days see your doctor. ...Read more

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Is strep throat contagious after bicillin shot?

Depends: Most would consider a patient contagious for a period of 24 hrs after the start of therapy.This would include the shot.After that time, spread is much less likely except with intimate contact. ...Read more

Pharynx (Definition)

It is the connection between the mouth and the throat. The 3 parts are the oropharynx, nasopharynx, and hypo-pharynx. The pharynx leads into the ...Read more


Strep Throat (Definition)

A throat infection caused by a strep bacteria that responds ...Read more