Table 3.

Scoring system of the skin irritation test.

Reactions	Score
Erythema and Eschar
No erythema	0
Very slight erythema (barely perceptible)	1
Well-defined erythema	2
Moderate erythema	3
Severe erythema (beet redness) to eschar formation preventing grading of erythema	4
Oedema
No oedema	0
Very slight oedema (barely perceptible)	1
Well-defined oedema (edges of area well-defined by defined raising)	2
Moderate oedema (raised approx. 1 mm)	3
Severe oedema (raised more than 1 mm and extending beyond exposure area)	4
Maximum Possible Score for Irritation	8