Urticaria might take time to settle... the key is to reduce Atarax Syp gradually under supervision of dermatologist based on response.
If you keep on stopping atarax and then give it again, then uriticaria will take more time to settle. In kids diet factors also contribute.
Next Steps
Consult dermatologist and follow instructions until urticaria stops for a month or so
Health Tips
Do not self medicate take guidance of dermatologist