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Doctor insights on: Is There A Difference Between Scarlet Fever And Strep Throat

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Is there a difference between scarlet fever and strep throat?

Is there a difference between scarlet fever and strep throat?

Yes, there is.: Both, strep throat and scarlet fever, are caused by group a streptococci. Some strains of group a strep such as the one causing scarlet fever produce erythrogenic exotoxin responsible for the red spots (rash). ...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


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Can you please tell me how scarlet fever and strep throat differ?

Can you please tell me how scarlet fever and strep throat differ?

A Rash: Scarlet fever is strept throat with a rash. Otherwise it is exactly the same symptoms, possible complications and therapy. ...Read more

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What besides strep throat causes scarlet fever?

What besides strep throat causes scarlet fever?

Only Strep: While there are many infections that cause rashes that are similar in appearance to scarlet fever, only strep causes scarlet fever. This is due to the fact that the disease is a constellation of symptoms, not just a rash. ...Read more

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Is scarlet fever treated the same way as with strep throat?

Is scarlet fever treated the same way as with strep throat?

Yes: Scarlet fever is strep throat which has a sandpaper like rash mostly in the warm areas of the body. The organism is the same...Strep and is treated the same. The rash may take longer than the sore throat to go away, as much as 7-10 days. ...Read more

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How is strep throat strep throat different from scarlet fever?

How is strep throat strep throat different from scarlet fever?

The germ: Some group A strep germs carry an extra piece of genetic code that triggers a toxin that can cause the rash. If someone has a strep infection in their throat it usually shows up within 12 hrs of the first fever. If the infection is treated very early, it may not show up at all. A strep germ without the extra gene will not trigger the rash. Scarlet fever is an old term used back before penicillin. ...Read more

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How are strep throat and scarlet fever distinguished from each other?

How are strep throat and scarlet fever distinguished from each other?

Definition is strep: The term "scarlet fever " applies to strains of strep a that have the additional dna to make a red rash. The infection may be in the throat, or other site (skin, anus) and still produce the rash and fever. Strep throat includes strains of strep a that may or may not produce a rash. Their location in the throat is rather specific. ...Read more

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I cought strep throat from my cousin, and will it turn into scarlet fever like his did?

I cought strep throat from my cousin, and will it turn into scarlet fever like his did?

Possibly: Some strains of strep a strains carry an extra gene plasmid that controls the production of a chemical that enters the blood & causes the generalized red rash of scarlet fever. Not all strep a strains do, but if you did catch strep from someone with the rash it would likely produce the same rash in you within 24hrs of the first fever. Early rx prior to firm establishment of the germ might stop it. ...Read more

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How is scarlet fever rash prevented if you already caught the strep throat?

How is scarlet fever rash prevented if you already caught the strep throat?

Part of Strep: Scarlet fever is produced by the breakdown if you will of the strep bacteria. Not everyone who has "strep" develops the rash.
The scarlet fever rash is more common in children.
If you suspect you have a strep infection, seek treatment asap in order to avoid complications. ...Read more

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My son 3 had strep throat in november took amoxilin for 10 days now 2 months later is taking same med for scarlet fever. Could there be resistance?

Reinfected: You may have him enrolled in a day care and as such he probably became reinfected. Amoxil (amoxicillin) is still the drug of choice for strep infections or scarlet fever. ...Read more

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Could treated strep throat lead to scarlet fever 10 weeks later and is it ok to treat it with same type of amoxicilin to avoid further complications?

Could treated strep throat lead to scarlet fever 10 weeks later and is it ok to treat it with same type of amoxicilin to avoid further complications?

No: Scarlet fever is due to a toxin released by the strain of strep pyogenes that is causing your sore throat. If this has been eliminated you should not be getting scarlet fever unless reinfected. Yes you can retreat with same antibiotic if necessary. ...Read more

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3 yr old has strep throat and a rash on her wrists and neck. She typically has exzema, is there a good way to know if it is that or scarlet fever?

3 yr old has strep throat and a rash on her wrists and neck. She typically has exzema, is there a good way to know if it is that or scarlet fever?

Needs treatment: She needs antibiotics either way. Scarlet fever is strep throat with a rash and is treated with antibiotics. If the erash improves a lot after antibiotics- it was likely scarlet fever...If it clears only a little, then most likely was more eczema. Scarlet fever rash may also peel a little bit when healing. ...Read more

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Can the symptoms of scarlet fever be there without any sore throat?

Can the symptoms of scarlet fever be there without any sore throat?

Unusual: Almost always has sore throat as part of the illness, but could imagine circumstances under which this might not happen. ...Read more

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Is it possible for step throat to develop into scarlet fever?

Is it possible for step throat to develop into scarlet fever?

Yes & no: The germ that causes group a strep disease, the common strep throat, can come in more than 1 strain. The germ may carry an additional piece of genetic information that gives it the ability to make "erythrotoxin", the material that will spread in the blood & cause the red rash & significant fevers of "scarlet fever".If your strain does not have the extra info, you don't. ...Read more

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My son is having scarlet fever, now from 1 day I have also started having headache & uneasiness in throat so is it likely for me also to catch same?

My son is having scarlet fever, now from 1 day I have also started having headache & uneasiness in throat so is it likely for me also to catch same?

Scarlet Fever: It is entirely possible that your symptoms are due to your close contact with your son. You should be seen by your doctor so that proper treatment can be started and you can continue to be wonderful caregiver to your child. ...Read more

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I have a really sore throat and really tired also a rash of small close together spots I've looked online and it says scarlet fever please help?

See your doctor: Rashes are hard to diagnose online sometimes so if you do think it looked like Scarlet fever then you need to see your doctor. Scarlet fever is caused by the strep bacteria and should be treated to prevent complications. If this is a virus then the strep test will be negative and fluids, rest and liquids are the treatment. ...Read more

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7 year old has what looks like the beginning of scarlet fever rash. Small red bumps sandpaper like all over body, but has no fever or no sore throat.

7 year old has what looks like the beginning of scarlet fever rash. Small red bumps sandpaper like all over body, but has no fever or no sore throat.

Rash: It may not be scarlet fever at all. Scarlet fever is a fairly rare manifestation of strep infection. It's unlikely to go without sore throat and fever either. You will need to take you kid to the doc to figure this out. ...Read more

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My brother had strep and it turned into scarlet fever. Does that mean my strep will too?

Doesn't matter: Scarlet fever is just an archaic name for strep associated with a red rash that often led to intractable high fever (weeks)in the era before penicillin. Today it has no significance other than being a strain marker. About 15-20% of strep strains have an extra gene that codes for a chemical that gives the rash. If you got your strep from bro, you would likely get a rash, but doesn't really matter. ...Read more

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Hoping you can tell me, is "strep rash" the same as scarlet fever?

Yes and no: The strep rash is what used to be the most prominent feature of scarlet fever. But the term is more of a historical one. There was a time (lest we forget) that we did not have antibiotics. Scarlet fever described a systemic strep illness that could last more than a week with high sustained fevers over 103 and the rash. Most would recover but some developed rheumatic fever afterward. ...Read more

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Spouse has strep with a rash, scarlet fever. How serious/contagious is that?

Spouse has strep with a rash, scarlet fever. How serious/contagious is that?

Very.: Strep is quite contagious; but after a few days of an effective antibiotic therapy, the contagion risk drops dramatically. ...Read more

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I cought strep from my cousin but will it turn into scarlet fever like his did?

I cought strep from my cousin but will it turn into scarlet fever like his did?

Maybe: If you really caught it from that cousin & not at random, the strain you have would be one that produces the red rash. Treatment started before the rash appears may stop it. Scarlet fever is really an archaic term left over from the pre-antibiotic era, when many fevered off & on for days with it. A common name applied to the rash now is scarlatina. ...Read more

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Is the antibiotic allergic reactions (like in your photo) frequently confused with scarlet fever (similar skin reaction) that accompanies the strep?

Is the antibiotic allergic reactions (like in your photo) frequently confused with scarlet fever (similar skin reaction) that accompanies the strep?

Preceding feble illn: The two rashes can overlap. Scalet fever will have a precedomg febrile illness with the rash starting 12-48 hours later, usually on the face and upper trunk with subsequent body involvement. Feels like a rough sunbun, there may be broken blood vessels in the folds of the skin with flushed cheeks and pale areas arround the mouth. The tongue is frequently red and enlarged. ...Read more

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I had scarlet fever as a child. I'm now 46 and all rapid strep tests result in faint positive-culture comes back neg. Is the SF somehow to blame?

I had scarlet fever as a child. I'm now 46 and all rapid strep tests result in faint positive-culture comes back neg. Is the SF somehow to blame?

No: The rapid test samples mucous/germs in your throat. It has no way of being influenced by your past medical history. Your throat mucous can never yield that data. The "faint" false positive has been proven negative enough times that it suggests a degree of unreliability for the test used, or how it is being done. ...Read more

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If a child has strep & gets scarlet fever, will the rash show up immediately when the symptoms start or can it take a few days for the rash to start?

If a child has strep & gets scarlet fever, will the rash show up immediately when the symptoms start or can it take a few days for the rash to start?

Usually soon: The rash producing chemical that is generated by the strep is created after the start of the infection when it has reproduced in enough numbers to make the rash toxin. Studies suggest it will be evident by 12 hours after the appearance of fever in the illness. Not all strep will produce the rash, only those with the extra dna to make the extra toxin. ...Read more

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Scarlet fever type rash-negative for strep. Fatigue, headaches, loss of appetite w/seemingly no other symptoms. No fever. MD said good luck...help!

Scarlet fever type rash-negative for strep. Fatigue, headaches, loss of appetite w/seemingly no other symptoms. No fever. MD said good luck...help!

Infectious Disease: This could be any of a dozen or more syndromes that could be thought of. You should find an infectious diseases specialist and let them thoroughly evaluate you. Good luck. ...Read more

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I have brown, dry spots that I was told was Scarlet fever residue. I am 59, I was 8 when I had the fever. They cover my body from my knees to my neck?

I have brown, dry spots that I was told was Scarlet fever residue. I am 59, I was 8 when I had the fever. They cover my body from my knees to my neck?

Can't accept that: I have seen & treated scarlet fever over decades and followed the patients for years afterward. I have never seen any skin discoloration as a long term consequence of this problem. The rash, when it arises is temporary. The skin, renews itself over the years and by the time decades have past, you have new surface cells & many imperfections (environmental exposures) that were never present in childhood. ...Read more

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How long does fever last with strep throat?

How long does fever last with strep throat?

1-3 days after: After you start appropriate treatment for appropriately diagnosed strep throat, the fever usually resolves within a couple of days. If it lasts longer than 3 days after taking medicine as prescribed, you should contact the doctor as you may have developed an abcess that needs draining or other complication. It would also be possible the wrong diagnosis was made, and need to make sure on right meds. ...Read more

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How long does a fever last with strep throat?

How long does a fever last with strep throat?

Fever and strep: Hello, it depends on the infection, the intensity or degree of inoculation, your immune status and overall state of health. Typically, the infection and fever will be treated with medicine to reduce the fever like Acetaminophen or an antibiotic. You should see the fever resolve with a few days. If it persists, see your doctor for another evaluation. ...Read more

Dr. John cuong Doan
115 Doctors shared insights

Scarlet Fever (Definition)

A condition consisting of a sandpaper-like rash that can occur with a strep throat infection. It starts on the neck and ...Read more


Strep Throat (Definition)

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