It can be difficult to determine the exact cause of eczema in a 7-month-old baby. Eczema can be worsened by dry skin, which can be caused by factors like indoor heating and cold weather. Scratching can also exacerbate the condition. Some foods may also play a role in worsening eczema. It is recommended to keep a food journal to see if there are any correlations between certain foods and flare-ups. Hydration is key in managing eczema, so using fragrance-free moisturizers frequently throughout the day is important. Avoiding hot water during baths or showers is also essential to prevent further drying out of the skin. After bathing, gently pat the skin dry and apply moisturizer immediately. Consulting with a pharmacist for personalized advice on managing your child's eczema may be helpful. Feel free to reach out if you have any further questions.