My case is the following:I am 20 years old,male I have been diagnosed with angioedema 3-4 months now. Before that i was ok,the only thing i changed in my lifestyle was a multivitamin i used(orovo multivitamin) i am not sure if this is the cause of the face swelling i have.I have done various of blood tests and i have noticed that my immunoglobulins Ig-E were 1068,5 when the natural is <120. This is caused due to an allergic reaction right? My thyroid gland and my eosinophils were ok by the way.I have used many antihistamines but nothing seems to help. My cheeks are swollen and the area under the eyes and over the lips too, the thing that i can not understand is that without me doing anything different than usual things they suddenly become swollen.When a small pimple appears in the affected area and i touch it,the place near that somehow becomes irritated and swollen and turns white to purple color. I did the skin tests but didn't found anything. Is there a possibility that my face swelling is not cause due to an allergic reaction?I have used rupatadine,ranitidine,levocetirizine dihydrochloride but with no success. It feels really uncomfortable and annoying and i don't know exactly what to do...I have visited 2 allergiologists and they just advised me to continue using these antihistamines but 4 months now they don't help me. I really want to get rid of this,as it is the first time in my life that something like this happens to me. Is there an effective treatment for it?If yes,how long will it take and what should i do?