Podiatrist visit: advises me to stretch my sidi's

[Kingfisher]

After developing a bunionette on left foot, went to see podiatrist yesterday and besides a small shot of cortisone he advised me to take sidis (genius 7 road) to a cobbler and have then stretched near front of shoe to account for my bunion.

Anybody else done this with cycling shoes? Is the device a once and done deal or do you keep going back for more shoe modifications? I suppose it is a devise that only cobblers have?