Strep throat is caused by the bacteria Streptococcus pyogenes. Doctors usually prescribe antibiotics to treat it. In some cases, the following complications may occur:

Tonsil abscess

A tonsil abscess is an infection (pus, mucus, or fluid) that forms in the area around the tonsils. This condition is more common in children and teenagers than in older adults.

Glomerulonephritis

A form of kidney disease that can develop one to two weeks after an untreated throat infection occurs when small blood vessels in the kidneys become inflamed and is most common in children aged 6 to 10.

Erythema

This is not a complication of strep throat, but a form of streptococcal infection that can develop at the same time as throat symptoms. It is characterized by fever and a red rash that first appears on the neck and chest, then spreads to the rest of the body. The rash has a rough, sandpaper-like texture.

Rheumatic fever

This complication can develop 14 to 28 days after a throat infection. If strep throat is treated within the first 9 days of symptoms, the risk of rheumatic fever is low. Rheumatic fever can cause fever, nosebleeds, abdominal pain, and heart problems. This complication can also cause painful swelling in the knees, ankles, elbows, or wrists, sometimes leading to abnormal body movements.

Autoimmune neuropsychiatric disorders

Childhood autoimmune neuropsychiatric disorders associated with streptococcal infection. These include obsessive-compulsive disorder (OCD) or tic disorders (uncontrollable, repetitive muscle movements) that first appear or suddenly worsen soon after a streptococcal infection.

Sinus and ear infections

Strep throat viruses can cause sinus and ear infections.

To prevent streptococcal infections, people need to wash their hands regularly, throw away tissues after use, not share items (towels, drinking cups, toothbrushes, etc.), and cover their mouths when coughing or sneezing.

Avoid direct contact with people who have strep throat. Patients need to take the full dose of antibiotics as prescribed by the doctor to avoid relapse and not infect others during treatment.

Mai Cat (According to Everyday Health )