Suggest Treatment For The Allergic Reaction On My Face

hi i have been having a real bad allergic reaction to something and i dont no what it is i went to ems two times my face got big ,hurt rate went up thought i was going to pass out my lips i have been red for mouths i told my doctor and i got the sakes real bad im on to blood pressure pills they to me off of lisiopril but im still on metroprolol my nerves have been very bad of an on also i do drunk alot but im stopping also i have bad headaches and my scalp is bothering me i have lost over 20 pounds in the last two mouths