Baby eczema, also known as tinea cruris, is a common acute or subacute inflammatory skin reaction that occurs on the head and face of infants. Mothers of babies with eczema who have unreasonable lifestyle and dietary habits can also affect their babies during breastfeeding. Baby eczema may be caused by parents who prefer spicy and irritating foods, improper diet and through genetic inheritance, resulting in the baby’s body heat and eczema, or it may be caused by congenital allergies and acquired nutritional deficiencies. It usually starts when the baby is 2 to 3 months old, and after 1 to 2 years of age, the symptoms will naturally reduce and subside. If your baby has eczema, both mom and baby should avoid spicy and stimulating, fish, shrimp, seafood, beef and mutton and other indigestible foods. You can eat more fresh vegetables and fruits to make the breast milk light. The mother should always pay attention to the baby’s digestive function and whether the bowel movement is normal. Avoid external stimulation and do not scrub the affected area with hot water and soap. Keep your baby’s nails short to avoid scratching and breaking the skin. Dress your baby in cotton sweat-absorbing clothes and avoid wearing too thick clothes. Take antihistamines as prescribed by the doctor, and use oil emulsions to apply to the affected area.