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A 10-year-old asthmatic boy began to suffer from urticarial rash and moderately severe bronchospasm after 8 weeks' treatment with disodium cromoglycate.
 adverse event: after 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: after 