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Your daughter seems to be suffering from Acute urticaria
. It is characterized by itchy red or skin colored raised wheals which is transient, that means appears in one place and soon disappears from there to appear somewhere else. The most common cause of acute urticaria is food. Seafood, meat, poultry, egg, milk, apples, brinjal, strawberry, coloring agents etc are commonly implicated. It is subjective and any food can cause it. Other common causes are medicines, infections, insect bites
You can take anti histamines
like cetrizine 10 mg or Fexofenadine
180 mg once daily or Levocetrizine 5 mg once daily. If it is not coming under control the dose can be increased to twice a day. A shot of inj Avil also will help for which you need to see a dermatologist
. Try to rule out the trigger. Acute urticaria may last for three to five days even if the trigger is eliminated.
Hope this helped