To determine whether there is a relationship between infant eczema and milk powder, you can judge by observing the range of lesions, replacing milk powder and checking allergens. 1. Observe the range of lesions: If the eczema is caused by milk powder, it is usually generalized and may appear as bright red or dark red papules on the face, ears, hands and feet, forearms, calves and other parts of the body. If the lesions are localized, the eczema may be caused by other reasons. 2. Replacement of milk powder: If the baby’s eczema improves significantly when using other milk powder, it is more likely to consider milk powder allergy causing eczema. 3. Check allergens: You can also go directly to the hospital for allergen determination, which can more accurately determine whether the eczema is related to milk powder allergy. It is recommended that parents do not judge blindly, early to the hospital dermatologist, clear cause to follow the doctor’s instructions to be targeted treatment. Breastfed babies parents should avoid diets that may cause allergies.