What are the precautions for children with allergic purpura?

Patient's question:

Female, 11 years old, from Shandong. Patient with allergic purpura, onset date November 29, 2009

Doctor's answer:

If you know the child's allergy principle, the best way is to avoid allergens, which can prevent recurrence. If you don't know the allergen, it is recommended to take the child to the dermatology department of the hospital for an allergen test to determine the cause.，，，，，，。，、、，、、；。，。，，。