Changes in Numerical Rating Scale (NRS) for oral cavity pain after prescription of indigo naturalis ointment in patients with chemotherapy-induced oral mucositis
| NRS score | P value* | ||
| Mean±SD | Median (IQR) | ||
| Day 1 (prescription date) | 4.74±1.76 | 5.00 (3.00–6.00) | – |
| Day 2 | 4.06±2.05 | 3.50 (2.00–5.00) | 0.747 |
| Day 3 | 3.37±2.60 | 2.00 (1.00–5.00) | 0.264 |
| Day 4 | 2.50±2.44 | 2.00 (0.00–5.00) | 0.033 |
| Day 5 | 1.76±2.16 | 1.00 (0.00–3.00) | 0.001 |
| Day 6 | 1.34±1.86 | 0.00 (0.00–2.50) | <0.001 |
| Day 7 | 1.18±1.78 | 0.00 (0.00–2.00) | <0.001 |
| Day 8 | 0.74±1.59 | 0.00 (0.00–1.00) | <0.001 |
*Comparison with NRS score of day 1.