Table 1.
Individuals, contact agents and macroscopic responses
| Subjects | Contact agents | Concentration (w/v) | Time of exposition | Macroscopic response# |
| Control skin | ||||
| Normal skin from all patients | - | - | 0 | |
| GN | Patch alone | - | 24 h | 1 |
| Specific antigens | ||||
| PF | Nickel | 5% | 48 h | 3 |
| GL | Peru Balsam | 25% | 48 h | 3 |
| Chemical agents | ||||
| RL | Aqueous Sodium Lauryl Sulphate | 10% | 24 h | 2 |
| EY | Toluene | undiluted | 24 h | 2 |
| AR | Trichloroacetic acid | 35% | 24 h | 3 |
| CL | Sodium Hypochlorite | undiluted | 24 h | 2 |
| SD | Salicylic Acid | 30% | 24 h | 2 |
| CM | Sodium Hydroxide | 10% | 24 h | 3 |
| PC | Glycolic Acid | 70% | 24 h | 2 |
| KM | Benzalkonium chloride | 5% | 24 h | 2 |
| Phisical agents | ||||
| KR | Tape striping | - | 15 min | 1 |
| EE | Liquid Nitrogen | - | 2 cycles of 15 sec | 3 |
| MA | Ruda tea + UVA | - | 5 min | 1 |
| Kinetic response | ||||
| AJ | SLS | 10 % | - | 0 |
| AJ | SLS | 10 % | 10 h | 1 |
| AJ | SLS | 10 % | 48 h | 2 |
| AJ | SLS | 10 % | 96 h | 1 |
| AJ | SLS | 10 % | 168 h | 1 |
# Macroscopic response grading scale: no irritation = 0, weak = 1, moderate = 2, strong = 3