Clear

No pruriginous lesions (0 lesions)

Almost clear

Rare palpable pruriginous lesions (approximately 1-5 lesions)

Mild

Few palpable pruriginous lesions (approximately 6-19 lesions)

Moderate

Many palpable pruriginous lesions (approximately 20-100 lesions)

Severe

Abundant palpable pruriginous lesions (over 100 lesions)