Here were diseases that affect confidence and self-esteem as much as they physically drain and disable sufferers.I knew a little bit about childhood eczema and had some understanding of its impact on families through disrupted sleep, and I learned more about its effects on children as a result of increased irritability and, sometimes, consequent disruptive behaviour. However, until I came across the work of the Skin Care Campaign Scotland, I did not know that 130,000 people in Scotland are affected by psoriasis, 30,000 of whom have severe psoriasis and a quarter of whom have associated arthritis.