The use of autoinflation in the treatment of glue ear has been widely recommended. In order to assess its efficacy, 40 children were studied. 21 children practised nasal autoinflation of a toy balloon 3 times daily for 3 weeks and 19 children had no treatment. In the autoinflation group only 4 glue ears improved, while in the untreated group 10 glue cars improved. This study suggests that autoinflation has no part to play in the treatment of glue ear in children.