Area: An assessment of the affected area (A) as a percentage of the whole body for children under 2 and over 2 years of age is shown in figure 1 and 2 respectively. The score for each area is added up. The total area is 'A', which has a possible maximum of 100%.
Intensity: A representative area of eczema is selected. In this area, the intensity of each of the following signs is assessed as none (0), mild (1), moderate (2) or severe (3).
• Redness
• Swelling
• Oozing / crusting
• Scratch marks
• Skin thickening (lichenification)
• Dryness (this is assessed in an area where there is no inflammation)
The intensity scores are added together to give 'B' (maximum 18).
Subjective symptoms: Subjective symptoms i.e., itch and sleeplessness, are each scored by the patient or relative using a visual analogue scale where 0 is no itch (or no sleeplessness) and 10 is the worst imaginable itch (or sleeplessness). These scores are added to give 'C' (maximum 20).
Total Score: The SCORAD for that individual is A/5 + 7B/2 + C 
Table 2: Calculation of Scorad Index.