You are the on-call doctor at your GP surgery and are alerted to reception as a young child appears to be having a tonic-clonic seizure. Mum who is understandably very distressed explains that her son Frankie who is four, has had 48 hours of coryzal symptoms, earache and an intermittent fever. Frankie’s mum checked his temperature just before leaving the house and it was 39 degrees (at which point she gave him Paracetamol). He had a suspected febrile convulsion 3 days ago and is awaiting to see secondary care later this week. The seizure has now been ongoing for nearly 6 minutes and an emergency ambulance has already been called.
What is the next most appropriate course of action?