Your symptoms fit Atopic dermatitis, which often worsens in winter due to dry air. Keep the area well moisturized with a thick, fragrance-free cream (apply 2?3 times daily), use a gentle face wash instead of soap, and avoid hot water and harsh products. For itching or redness, a mild cream may be needed temporarily, and an antihistamine like Cetirizine can help reduce itching. If it becomes severe or doesn?t improve, consult a dermatologist for proper treatment.

Desosoft Cream should only be used on a baby if a doctor has carefully examined the skin and decided it's necessary. A 5-month-old's skin is very delicate, and using any medicated cream without proper medical advice can cause harm. Always consult a paediatrician first; they will assess the baby's condition and recommend treatment based on the specific medical need.