| to treatment | 20 | other |
| to topical treatments | 7 | other |
| usually | 2 | degree |
| acne → be → resistant | 25 |
| acne → be → more resistant | 4 |
| acne → become → resistant | 3 |
| negative | neutral | positive |
| 0.356 | 0.533 | 0.111 |
| Raw frequency | 32 |
| Normalized frequency | 0.475 |
| Modifier score | 0.550 |
| Perplexity | 475.519 |