What is hot feet itching?

This condition can be seen in thermal contact urticaria. It is a special type of urticaria, divided into congenital and acquired two kinds. Congenital thermal urticaria, also known as delayed familial thermal urticaria, this kind of patient belongs to autosomal dominant inheritance, early onset, 43 degrees warm water contact skin 1~2 hours, in the contact site shows wheals, 4~6 hours to peak, generally lasting 12~14 hours. Acquired thermal urticaria is also called localized thermal urticaria. A test tube filled with warm water of 43 ℃ is placed on the patient's skin. After a few minutes, wheals and erythema can be shown at the contact site. The patient is often accompanied by tingling sensation and itching sensation, lasting for about one hour. The rash can disappear by itself without trace after disappearance.