Good morning I want to ask is is normal that my...

does your daughter have fever ?
37.7 is almost around normal range and isnt considered as high fever 
is this case normal if you daughter on antibiotics ?
yes, its considered normal 
general advices :
1. avoid dusty weather
3. give plenty of water and vitamin C drinks and honey 
4. give herbs that usually helps with thraot pain and infection such as cinnamon and honey nd genger
5. take medication to relieve throat pain such as ivy syrup