Strep throat and a rash

Strep throat can present with a fine, rough-feeling rash that begins on the trunk or skin folds and may spread; this pattern is sometimes called scarlet fever. A rash can also have another cause, including a viral illness, an allergic reaction, or a medicine reaction. Note when the rash started in relation to the sore throat and any new medicine. A clinician can examine the skin and throat together rather than relying on appearance alone.

Arrange a GP Consultation if a sore throat is accompanied by a new rash, fever, swollen glands, or painful swallowing. Do not stop or restart prescribed Antibiotic Treatment without advice. Keep the skin cool, avoid scratching, and use gentle unperfumed products. Take a clear photograph if the rash changes before the appointment, and record new foods, products, or medicines. Avoid close contact until you have advice if an infectious illness is suspected.

Seek emergency help for a rash with facial or tongue swelling, breathing difficulty, faintness, blistering, skin peeling, or purple spots that do not fade when pressed. Get prompt medical advice for rapidly spreading redness, severe illness, inability to drink, or a worsening throat. These features need assessment regardless of whether strep throat is confirmed.

Ask whether the rash pattern fits strep throat, whether a throat test is needed, and whether any medicine could be contributing. Tell the clinician about allergies, the rash’s timing, itch, pain, fever, and any breathing or swallowing change.