| Grade | Symptoms |
|---|---|
| 1 | Faint erythema or dry desquamation |
| 2 | Moderate to brisk erythema; patchy moist desquamation, mostly confined to skin folds and creases; moderate edema |
| 3 | Moist desquamation in areas other than skin folds and creases; bleeding induced by minor trauma or abrasion |
| 4 | Life-threatening consequences; skin necrosis or ulceration of full thickness dermis; spontaneous bleeding from involved site; skin graft indicated |
| 5 | Death |