Elle is a 4 year old girl who attends A&E with her father who is concerned after attending her GP practice 4 days ago. He informs you that Elle complained of a sore mouth, reduced appetite and he noticed a few red marks on the roof of her mouth. He also reported a slight fever but this has been controlled with Paracetamol. He is concerned as no treatment was offered by the GP despite a diagnosis of Hand, foot and mouth disease being made. He is insisting on antibiotics or some form of treatment for Elle as there has been no improvement.
What is the most appropriate action to take?