| in the skin | 8 | location |
| on the bottom of the foot | 7 | location |
| in heartburn | 6 | other |
| symptom → burn → pain | 23 |
| symptom → burn → sensation | 10 |
| symptom → burn → feeling | 3 |
| negative | neutral | positive |
| 0.750 | 0.238 | 0.012 |
| Raw frequency | 36 |
| Normalized frequency | 0.335 |
| Modifier score | 0.843 |
| Perplexity | 282.530 |