Mild cases of infantile urticaria can be relieved through home care, but close observation is necessary, and medical attention is required in severe cases. The following points illustrate important precautions:

1. Keep skin clean and cool: Gently wash the affected area with warm water, avoid scratching, and wear loose cotton clothing to reduce sweat irritation.

2. Investigate common triggers: Record your diet or contact with substances such as certain foods, pet hair, pollen, etc., and try to temporarily avoid possible factors.
3. Soothe skin discomfort: Apply a cold compress to the itchy area for a short time, trim the baby's nails to prevent scratching, and keep the living environment well-ventilated and dry.
If the rash continues to spread, is accompanied by shortness of breath or facial swelling, seek medical attention immediately. Observe your baby's condition daily, avoid administering medication without consulting a doctor, and be patient during care to help your baby recover gradually.