.irritants – such as soaps and detergents, including shampoo, washing-up liquid and bubble bath.
.environmental factors or allergens – such as cold and dry weather, dampness, and more specific things such as house dust mites, animals, pollen and molds
.food allergies – such as allergies to cows’ milk, eggs, peanuts, soya or wheat certain materials worn next to the skin – such as wool and synthetic fabrics
.hormonal changes – women may find their symptoms get worse in the days before their period or during pregnancy