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Usually it is a self - limited disorder , but corticosteroid therapy may be needed in life - threatening cases since early treatment with corticosteroids in severe cases can prevent complications .
 Chemical: corticosteroid; Chemical: corticosteroids
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: corticosteroid; Chemical: corticosteroids