Lip swelling. Dry n dry. please suggest.

Hi doctor, i had urine infection, i consulted with medical store n bought ciplox 500, urispas and pan d. I was advised to take them for 3 days which i did. After using it for first day i realized itching on my lower lip. I thought it May b due to bug bite or some thing i ignored it. 2nd day it started swelling n since yesterday it has became severe. Lip swelling n discolored lip and blisters inside mouth left area. I also have pain near left ear. I m feeling very uncomfortable while eating or talking. Not able to close or open my mouth properly. Today i visited a gyno n she prescribed me tablets montair and defcort 6 and asked me to take it for next 5 days. I have taken one dose after lunch. However, there is no yet change in my lip condition. I am worried. I have applied ice cubes several times. With no results. Its becoming dry n dry. Please suggest. Regards, Kavita