Hi,Dear,Thanks for your query to HCM.
Dear I read your query and reviewed it with context to your query facts.
I understood your health concerns and feel Concerned about them.
Based on the facts of your query, you seem to suffer from-
Angioneurotic Edema with 
Vasculitis -due to severe reaction to 
Flu shot 
vaccine antigen.
Go to Er and Get Inj.
Dexona 2ml stat -Im / and 
Tab Avil-25 mg -2 times a day
Tab Dexona -1 x 3 times a day x with reducing doses. over next week.
Plenty of fluids
Discontinue others.
This would help you immediately and would settle in next 3-5 days time.
Hope this would help you to reduce worry with your problem.
Take care and wish you to recover fast and Live healthy.
Hope this reply would help you to plan further treatment with your family and specialist doctors there.
Welcome for any further query in this regard.
Good Day!!
Dr.Savaskar M.N.
Senior Surgical Specialist
M.S.Genl-CVTS