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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: Photodermatol Photoimmunol Photomed. 2020 Oct 4;37(1):34–38. doi: 10.1111/phpp.12604

Table 1. Erythema Grading Tool.

Grade Description
1 Mild non-tender lasting <24 hours
2 Mild non-tender lasting >24 hours
3 Tender erythema
4 Persistent tender erythema usually with blistering