Things like Compeed Blister plasters are great, my mum buys them in bulk for me, because I'm stupid and live in heels despite the fact they kill my feet :) You can also buy
Party Feet (or any generic variant of) which are super-comfy and help to stop blisters appearing.
If you can, maybe go to
Lush and invest in some bath soak? I mean, you could go anywhere, but after a night out wearing heels my feet feel so much better after soaking them in a bath with a
ballistic bomb and a
foot scrub.
Glad your feet are feeling better now though!