2. 'drive' and 'take'. You do not say that you 'lead' someone somewhere in a car. You say that you drive or take them there. Ginny drove Mrs Yancy to the airport. It's his turn to take the children to school. 3. used as a singular noun. The person who has the lead in a race or competition is the one who is winning.
Angioedema is swelling that is similar to hives, but the swelling is under the skin instead of on the surface. Hives are often called welts. They are a surface swelling. It is possible to have angioedema without hives.
Hereditary angioedema is a rare but serious problem with the immune system. The problem is passed down through families. It causes swelling, particularly of the face and airways, and abdominal cramping. Angioedema is swelling that is similar to hives, but the swelling is under the skin instead of on the surface. Hereditary angioedema (HAE) is caused by a low level or improper function of a protein called the C1 inhibitor. With HAE, the blood vessels are affected. An HAE attack can result in rapid swelling of the hands, feet, limbs, face, intestinal tract, larynx (voicebox), or trachea (windpipe).