A.1% B.2.5% C.5% D.1.25% E.3%
A.10%~29% B.≤9% C.30%~49% D.<50% E.>50%
A.紅腫灼痛無水皰 B.張力較大的水皰,劇痛 C.水皰張力較小,疼痛,基底紅白相間 D.干燥,焦痂和蠟白 E.水皰小,基底水腫,感覺遲鈍