Score | Change in the color of lesion | Reduction rate in the color of lesion | Reduction rate in the induration of lesion | Reduction rate of ulcer/crust |
4 | Bright red | - | - | - |
3 | Red | 0% - 25% | 0% - 25% | 0% - 25% |
2 | Dusky red | 25% - 50% | 25% - 50% | 25% - 50% |
1 | Dark brown | 50% - 75% | 50% - 75% | 50% - 75% |
0 | Light brown | >75%/clearance | >75%/clearance | >75%/clearance |