Cough with scarlet fever: what to know

Scarlet fever is linked to infection with group A streptococcus and commonly includes a sore throat, fever, swollen neck glands and a fine rough-feeling rash. Cough and runny nose are more often associated with viral respiratory infections, so their presence may suggest another cause or a second infection. The rash can be easier to see on the trunk and may feel like sandpaper, but appearance alone does not confirm the diagnosis. A clinician can assess the throat and overall illness.

Arrange medical advice if fever, sore throat and rash occur together, particularly in a child. Encourage fluids and rest, avoid sharing cups or utensils, and follow local infection-control advice. If antibiotic treatment is prescribed, give or take it exactly as directed and complete the course unless the prescriber changes the plan. Do not use someone else’s medicine.

Seek emergency help for trouble breathing, inability to swallow saliva, severe dehydration, unusual sleepiness, confusion, a rapidly spreading rash, or swelling of the face or neck. Get prompt advice for persistent fever, worsening throat pain, reduced drinking, or a child who is becoming less responsive. Contact a clinician if symptoms continue after treatment or return.

Ask whether the symptoms fit scarlet fever or another infection, whether testing is needed, how to use antibiotic treatment, and when the person can return to school or work.