| Site of lesion | Cryo | H2O2 | X2 | P | ||
| No. | % | No | % | |||
| Face | 12 | 80.0 | 11 | 73.3 | 0.001 | 1.0 |
| Others | 3 | 20.0 | 4 | 26.7 | ||
| Total | 15 | 100 | 15 | 100 |
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