Angioedema, also known as giant urticaria, has the same pathogenesis as urticaria, but the skin manifestations are not the same. People with angioedema will suddenly feel their lips swell up inexplicably, and in severe cases, even their eyes, ears, and tongue will swell up. The shape of the face often changes, looking like someone’s face has been swollen, except that the color of the skin does not change much or is slightly red. Such edema can also occur in the foreskin. The edema is a little numb and sometimes itchy, but not serious. Usually this edema will subside on its own in 2 to 3 days, and it will not leave any marks after it subsides. However, if this edema occurs in the throat, then we should pay attention to it. If your throat is swollen, you will be unable to breathe, and in severe cases, you will suffocate, which can be life-threatening, so you should go to the hospital for treatment.