| Number** | Percentage (%) | |
| Alcohol | 81 | 38.6 |
| Cooking salt | 57 | 27.1 |
| Petroleum jelly | 50 | 23.8 |
| Shea Butter | 41 | 19.5 |
| Toothpaste | 35 | 16.6 |
| Plant sap | 17 | 8.1 |
| Maggi food cube | 12 | 5.7 |
| Herbal mixtures | 12 | 5.7 |
| 2% aqueous eosin | 9 | 4.3 |
| No application | 7 | 3.3 |
| Other substances* | 26 | 12.4 |