Preparation and Safety Evaluation of Centella asiatica Total Glycosides Nitric Oxide Gel and Its Therapeutic Effect on Diabetic Cutaneous Ulcers

Table 3

Standard of skin irritation response score.

Irritant condition		Score
Erythema
	No erythema	0
	Barely visible	1
	Obviously visible	2
	Moderate or severe erythema	3
	Purple erythema and eschar	4
Edema
	No edema	0
	Barely visible	1
	Visible	2
	Swelling of skin is about 1 mm; the outline is clear	3
	Swelling above 1 mm	4
The total score		8