Grading
0
+/- (1/2)
1
2
3
4
Description of skin response
No reaction
Doubtful reaction : Glazed appearance of site or barely perceptible erythema
Weak reaction : Slight erythema or dryness across most of treatment site
Moderate reaction : moderate erythema, possibly spreading with barely perceptible edema at the margin;
papules may be present
Strong reaction : moderate erythema with generalized edema
Severe reaction : severe erythema with severe edema, with or without vesicles, pustule or