### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
My 3 year old son has developed red, blotchy areas on his skin. It began on his cheeks and around his mouth, and I wondered if he d eaten something he was allergic to?? Within a few days, it had spread to his triceps, and forearms, upper thighs, and lower legs. The red areas are generally warm to the touch, but there is no raised bump or roughness, rather smooth skin. It doesn t itch or hurt. He has a history of eczema (fairly mild), but this is clearly something different. Otherwise he is a healthy kid.

### output:

Hello, Thank you for asking at Chat Doctor. I went through your sons history and would like to make suggestions for him as follows:1. From your provided history, I would first think of atomic dermatitis, though it should itch intensely, which is not the case with your son.2. I would also like to mention here that mild forms of atomic dermatitis may not always be due to food allergies. They can be caused by personal tendencies (genetic)/skin type (Chat Doctor. 3. I usually suggest my such patients regular use of calamine lotion or moisturizing creams, especially immediately after bathing, which improves moisture content within the skin and hence help to heal of skin.4. I also suggest my patients probiotics & vitamin D supplementation which helps to improve skin & immunity.5. If you suspect development of edematous skin lesions due to some foods, I would suggest specific IGE levels for that particular food, which help to identify whether he is allergic to that particular food. Common foods causing allergies are animal milk, egg, peanut, wheat, soy, tree nuts, fish, seafoods, etc. If he is allergic to any food, avoidance is the best treatment option.6. As itching is not a major problem, I would suggest getting him examined by dermatologist, if not done previously, so he can think of alternative condition, if it is there. Hope above suggestions will be helpful to you. Should you have any further query, please feel free to ask at Chat Doctor. Wish your son the best of the health ahead. Thank you & Regards.