How to RescueEdit
Towards the end of the Bathroom, there is a Bungalow Telepoint in between a set of drawers. Switch if you haven't already done so and reach the end, where there is a weighing scale. Move across the switch to activate it and jump onto the scales, then onto the stool. From here, leap onto the table containing the automatic make up / shaver, collect the Gold Tokens if necessary and reach Edna at the very end.