Scarlet Fever

Scarlet fever is an infectious disease resulting from a group A Streptococcus (group A strep) infection, the same bacteria that cause strep throat. It was once a leading cause of illness and death, but now it can be effectively treated with antibiotics.

What is Scarlet Fever?

Scarlet fever is characterized by a bright red rash that covers most of the body, a sore throat, and a high fever. The disease is highly contagious and can spread through direct contact with an infected person's mucus or saliva, often via coughing, sneezing, or sharing food and drinks.

Symptoms of Scarlet Fever

The symptoms of scarlet fever typically develop within 1-3 days after exposure to the bacteria. They may include:

  • A bright red rash that covers most of the body, including the chest, back, and arms, but usually sparing the face, palms, and soles
  • A sore throat, which can be severe and painful
  • A high fever, often above 103°F (39.4°C)
  • Chills
  • Headache
  • Nausea and vomiting
  • Abdominal pain
  • White or yellowish coating on the tongue, known as "strawberry tongue"
  • Swollen lymph nodes in the neck

Treatments for Scarlet Fever

The primary treatment for scarlet fever is antibiotics, which help to kill the group A strep bacteria and reduce the risk of complications. The most commonly prescribed antibiotics are:

  • Penicillin: This is usually the first choice of antibiotic for treating scarlet fever.
  • Amoxicillin: This antibiotic is often used in patients who are allergic to penicillin or have a history of rheumatic fever.
  • Azithromycin or clarithromycin: These antibiotics may be prescribed for patients who are allergic to penicillin and amoxicillin.

In addition to antibiotics, treatment for scarlet fever may also include:

  • Pain relief medication, such as acetaminophen (Tylenol) or ibuprofen (Advil), to help manage sore throat pain and reduce fever
  • Rest and hydration to help the body recover from the infection
  • A humidifier to add moisture to the air and relieve a sore throat
  • Throat lozenges or gargling with salt water to soothe a sore throat

Complications of Scarlet Fever

If left untreated, scarlet fever can lead to several complications, including:

  • Rheumatic fever: This is an inflammatory disease that can occur if the group A strep infection is not fully treated.
  • Kidney damage: In rare cases, the infection can spread to the kidneys and cause damage.
  • Ear and sinus infections: The bacteria can spread to the ears and sinuses, leading to secondary infections.
  • Abscesses: In some cases, the infection can lead to the formation of abscesses in the throat or other parts of the body.

Prevention of Scarlet Fever

To reduce the risk of getting scarlet fever, it's essential to practice good hygiene and take steps to prevent the spread of group A strep infections. These include:

  • Washing hands frequently with soap and water
  • Avoiding close contact with people who have a sore throat or other symptoms of scarlet fever
  • Not sharing food, drinks, or utensils with someone who is infected
  • Covering the mouth and nose when coughing or sneezing
  • Getting plenty of rest and practicing good hygiene to help prevent the spread of infection

Article last updated on: 11th April 2025.
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