How common is scarlet fever?

The illness is caused by a toxin-producing strain of bacteria associated with strep throat. The rash may begin on the chest or neck and spread, with a rough feel that can be easier to notice than its colour. The face may look flushed while the area around the mouth remains paler. Some people have headache, nausea, or reduced appetite. These features can occur in other illnesses, so a symptom list cannot confirm scarlet fever by itself.

Contact a healthcare professional if a child has a sore throat and fever with a rough rash, or if symptoms are worsening. Offer small, regular drinks and soft foods if swallowing is uncomfortable. Wash hands after coughing, sneezing, or touching used tissues, and avoid sharing household items that touch the mouth. If a clinician prescribes antibiotics, give them exactly as directed and ask what to do if a dose is vomited or missed. Keep the child home while they are feverish or too unwell for normal activities.

Seek urgent care for noisy or difficult breathing, drooling with inability to swallow, severe sleepiness, signs of dehydration, a purple or non-fading rash, or rapidly worsening illness. Arrange reassessment when fever persists, throat pain prevents drinking, or the child is not improving as expected. Read more about [Fever](/symptoms/fever/) and [Sore Throat](/symptoms/sore-throat/).

Ask whether the findings fit scarlet fever, whether a throat test is needed, how long the child should avoid close contact, and what improvement should look like. Mention allergies, chronic conditions, and any difficulty drinking.