Sitting here at 4:15am (CST) after trying since 2:30am to go back to sleep and finally giving up, yet again... Wondering who else is out there this morning, and most mornings at this time?
There are all sorts of old fashioned remedies for itches. Bicarb soda is another that has worked for me. I'm just not sure if I'd be applying any of them to a surgical wound if there were other options. It's hard to imagine that cornflour would do any harm on its own, but it could set up a nice little environment for the nasties if you weren't careful.