-Likert score Intensity of pain By word Face expression (without word) 0 Painless Peaceful expression 1 - 2 Least painful Stressful expression 3 - 4 Rather painful Grimace expression 5 - 6 Mediun painful Mourning, deploring 7 - 8 Severe painful Crying 9 - 10 Terrible painful Miserably - Classification of disease degrees: + Mild degree: Area of damage: < 1% ofbody area (BA); Likert ≤ 4; No local lymph nodesswollen; no peripheral nerve damage; sleep disturbance: little; physical condition: no fever, not tired.