| Score | Wheals | Pruritus |
|---|---|---|
| 0 | None | None |
| 1 | <20 wheals/day | present but not annoying or troublesome |
| 2 | 20-50 wheals/day | troublesome but does not interfere with normal daily activity or sleep |
| 3 | >50 wheals/day or large confluent areas of wheals | severe pruritus, which is sufficiently troublesome to interfere with normal daily activity or sleep |