Strep throat may cause:
- Red, sore throat with white patches
- Swollen, sore glands in the neck
- Red spots on the roof of the mouth
- Painful, difficult swallowing
- Nausea and possibly vomiting
- Decreased appetite
- Muscle aches, especially in the neck, and abdominal pains, especially in younger children
- Swelling in back of mouth
Complications of untreated strep throat can be serious and include:
- Middle ear infection or sinus infection
- Peritonsillar abscess
- Bacterial meningitis
- Infective endocarditis
- Rarely, rheumatic fever and pediatric autoimmune neuropsychiatric disorders (PANDAS) associated with streptococcal infection
Post-streptococcal glomerulonephritis (kidney damage) is also rare, but it can occur, even with treatment
Your doctor will ask about your symptoms and medical history. A physical exam will be done. Tests to confirm strep throat may be used and include:
- Rapid antigen strep screen—Antigens are a part of the body's immune response to specific infection. This test can identify antigens within a few minutes of the test. However, a negative test does not mean you do not have strep throat (this is called a false negative).
- Throat culture—A sample of throat fluid is taken to a lab to see if strep bacteria grows. It takes a few days to gets results.
- Rapid DNA test—DNA technology is used to detect strep throat. The results are usually available in 1 day.
Only a rapid DNA test or throat culture can confidently distinguish strep throat from throat infections with other causes. Doctors will often make a diagnosis and decide about treatment based on symptoms, physical findings, and test results.
Most sore throats, including strep throat, will get better on its own in 7-10 days. Although the sore throat disappears, the infection may remain. It is important to follow through with proper treatment to prevent serious complications.
Your doctor will prescribe antibiotics to treat the infection. Antibiotics may be given as a pill or a shot. Symptoms will often fade in the first few days of medication, but it is important to take all of the antibiotics as prescribed.
Your doctor may advise over-the-counter pain relievers and fever reducers to ease symptoms.
Note: Aspirin is not recommended for children with a current or recent viral infection. Check with your doctor before giving your child aspirin.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
Edits to original content made by Denver Health.
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a (Bacterial Sore Throat)
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Family Doctor—American Academy of Family Physicians https://familydoctor.org
About Kids Health—The Hospital for Sick Children http://www.aboutkidshealth.ca
Health Canada https://www.canada.ca
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