Table 3.
Adverse effects observed in the three treatment groups
| Adverse effect | CO2 laser | Microneedling | PRP |
|---|---|---|---|
| Erythema and edema | 10 | 5 | 0 |
| PIH | 4 | 1 | 0 |
| Pain | 7 | 10 | 10 |
| Bruises/hematoma | 0 | 0 | 3 |
| Persistent crusting | 4 | 0 | 0 |
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