It seems that you might have developed insect toxic dermatitis
There is wheal ,erythema
,oozing and irritation and burnig.
All these ,suggest dermatitis caused by insect bite ...
Take a short course of antibiotics.
Take antihistaminics with steroids
in tappering dose.
Apply antibiotic cream.
Do not scratch the lesion.
Within few days the lesion might be dried and healed after treatment.
You may consult dermatologist
This much would be helpful to you.
Dr. Ilyas Patel Md