Welcome to HCM.
Don't worry it will recover with augmentin
but continue it for atleast 7 to 10 days.
Start steam inhalation.Most likely it is allergic initially but later bacterial infection occurs usually.Watchful for triggering factor (allergen).
Also take vitamin B with lactobacillus
Avoid oily,spicy and chilled water,cold
drink and other food.
Go for CBC,absolute eosinophil count
Keep in touch with your doctor.