I remember a while back that there was a discussion on foot creams for people with hot feet, and others said that theirs were the opposite, and freezing! I was hunting around at home for some that we used to stock at work, and couldn't find it, until this weekend.
The brand is Gehwol Fusskraft, and there are 3 types; green and blue are for hot feet (I think green has an antibacterial/antifungal action too) and red is to warm up cold feet. They're all full of natural essential oils, and smell gorgeous!
You can get them on amazon; they're not the cheapest things - usually around £7 for a 125ml tube - but they are good, if anyone wants to try them. They last ages, too.