Cara is a 7 year old girl who presents with her father after suffering a sore throat and being unwell for the past two days. On examination, there is a temperature of 38.2 Celsius along with her throat being red and both tonsils are inflamed. There is no exudate seen on the tonsils. She has swollen but non-tender left submandibular lymph nodes. The ears are normal on examination. You observe a blanching erythematous rash on her trunk which feels rough and has not been observed until now by Cara’s father. She has no known allergies.
What is the next best course of action?