Thanks for your query.
Since your baby is having fever
,distress i would suggest you to get her evaluated by pediatrician
for proper management.
In the meantime give paracetamol
as per dosage(15 mg/kg)4 to 6 hourly till fever subsides.
Continue with breast feeding to maintain proper hydration.
If fever is high,do sponging of body with tepid water.
Wishing your baby good health.