Infant eczema, also known as atopic dermatitis, is the most common skin disease in infants and children under three years of age. Most children’s eczema is controlled between the ages of one and one and a half years, but a few may continue to experience symptoms until after the age of three or even into childhood. In severe cases, the eczema can persist into adulthood. This depends on the child's own constitution and physical condition. For children who are inherently allergic, the duration of eczema can be particularly prolonged. If the eczema is due to an allergy to breast milk or formula, it can be well controlled once breastfeeding is stopped, or the formula is switched to a hypoallergenic hydrolyzed protein formula.