I can pretty much wear anything at work. I wore dress sandals with a small wedge heel yesterday, and that was not a good choice. Not because it made it hurt more, but because the heel and straps across the top of the sandal put too much pressure on the bruise and I think actually made it worse. I say this because the bruise did not become apparent until after i had been at work for 4-5 hours. I could just wear regular ballet flats or flat casual shoes. I really wanted to wear a new dress I bought, so that might have to change and I can have a casual Thursday, since I don't work on Fridays.
And yes, the ill effects of anti-inflammatories are well known. If you look on the label, it always says it can cause intestinal bleeding, with no warning.