I was a bit sore after my LSD last Friday so I tried a post-run ice bath. It wasn't actually an ice bath since I didn't use any ice but it sure was cold enough. Ice baths are supposed to promote quicker recovery although there is some scientific debate regarding their benefits.
It certainly doesn't have the appeal of sitting in a jacuzzi but a hot bath is the worst thing for your muscles after strenuous activity.
A cold bath is quite a shock to the system and I never did feel comfortable and I didn't last more than 5 minutes which probably isn't long enough to have the desired affect. Anyway, as I sat in the bath, it reminded me of an episode of Seinfeld.