Figure 2
From: Urticaria and angioedema

Classification of urticaria: overview. *The 48-hour cut-off refers to individual lesions, while the 6-week cut-off refers to the condition as a whole.
From: Urticaria and angioedema
Classification of urticaria: overview. *The 48-hour cut-off refers to individual lesions, while the 6-week cut-off refers to the condition as a whole.