Sir i am suffering through a weird problem sudden itching

Patient: Sir i am suffering through a weird problem sudden itching starts anytime at any body part except face and hives come out and on some days swelling of lips and near eye is also discover able and today my scrotum also swelled .i searched on internet i found it angioedema but i never had problem is from last 1 month what should i do now?

Symptoms: Hives, itching

Doctor: