The key to caring for an eight-year-old child with urticaria lies in relieving itching, avoiding triggers, and observing changes in the condition. It is recommended to focus on three aspects: daily protection, skin care, and timely medical attention.

1. Relieve skin discomfort: Apply a cool, damp towel to the itchy area for a few minutes at a time to help temporarily relieve itching. Trim your child's nails to prevent scratching. Dress them in loose, soft cotton clothing to reduce friction.

2. Investigate possible triggers: Recall and record any special foods, items, or environments the child came into contact with before the onset of the illness, such as new snacks, places with high pollen concentrations, etc., and avoid them afterward, but there is no need to blindly and strictly avoid certain foods.
3. Maintain a comfortable environment: Keep the room cool and well-ventilated, and avoid using excessively hot bath water. Use mild bath products to prevent the child from sweating excessively, which can worsen itching.
If the rash recurs, spreads, or is accompanied by swollen lips, difficulty breathing, or other symptoms, take your child to see a doctor promptly. Follow the doctor's instructions regarding medication use and patiently reassure your child to help them smoothly navigate this period of discomfort.