Is she miserable or just hot? Although with her recent history I'd be asking 111 for a call from ooh doctor or a paediatric nurse.
Google NICE CG160 for correct information on fevers in children although I am copying and pasting the important bit here:
1.6 Antipyretic interventions
1.6.1 Effects of body temperature reduction
1.6.1.1 Antipyretic agents do not prevent febrile convulsions and should not be used specifically for this purpose. [2007]
1.6.2 Physical interventions to reduce body temperature
1.6.2.1 Tepid sponging is not recommended for the treatment of fever. [2007]
1.6.2.2 Children with fever should not be underdressed or over-wrapped. [2007]
1.6.3 Drug interventions to reduce body temperature
1.6.3.1 Consider using either paracetamol or ibuprofen in children with fever who appear distressed. [new 2013]
1.6.3.2 Do not use antipyretic agents with the sole aim of reducing body temperature in children with fever. [new 2013]
1.6.3.3 When using paracetamol or ibuprofen in children with fever:
continue only as long as the child appears distressed
consider changing to the other agent if the child's distress is not alleviated
do not give both agents simultaneously
only consider alternating these agents if the distress persists or recurs before the next dose is due. [new 2013]
1.7 Advice for home care
1.7.1 Care at home
1.7.1.1 Advise parents or carers to manage their child's temperature as described in section 1.6. [2007]
1.7.1.2 Advise parents or carers looking after a feverish child at home:
to offer the child regular fluids (where a baby or child is breastfed the most appropriate fluid is breast milk)
how to detect signs of dehydration by looking for the following features:
sunken fontanelle
dry mouth
sunken eyes
absence of tears
poor overall appearance
to encourage their child to drink more fluids and consider seeking further advice if they detect signs of dehydration
how to identify a non-blanching rash
to check their child during the night
to keep their child away from nursery or school while the child's fever persists but to notify the school or nursery of the illness. [2007]
1.7.2 When to seek further help
1.7.2.1 Following contact with a healthcare professional, parents and carers who are looking after their feverish child at home should seek further advice if:
the child has a fit
the child develops a non-blanching rash
the parent or carer feels that the child is less well than when they previously sought advice
the parent or carer is more worried than when they previously sought advice
the fever lasts longer than 5 days
the parent or carer is distressed, or concerned that they are unable to look after their child. [2007]