Patient's question:
Starting from April 2013, it was noticed that facial and arm swelling occurred in the morning, and fingers turned white when touching cold water, with the condition improving within a few minutes.Doctor's answer:
This is a case of mild cold-induced urticaria, which is a transient skin angioedema. In this situation, the local skin tissue is sensitive to cold water. Upon exposure to this cold stimulus, a rapid response occurs, leading to quick swelling and forming the condition you described. It is an allergic reaction. After warming up, the swelling can disappear rapidly. This condition requires minimizing exposure to this cold stimulus to effectively avoid it.