Thank you for your query at DoctorSpring.com
I understand your concern.
At this point, no severe allergic reaction is possible anymore. So, do not worry. Since no medication was taken the swelling has still not subsided.
I will advise you a course of Tab. Claritin 10 mg once daily at bedtime for 5 days, and this will reduce the itching as well as the swelling.
Hope this was helpful,