Ice and running seem to be covered here. I would not overlook nutrition. I'm no expert, but basic recovery theory these days seems to be taking in healthy complex carbs with a little protein within a short time after pitching. That can come by something as simple as a peanut butter and jelly sandwich [all natural pb, whole wheat bread, and "all fruit" spreads, please] or even some supplement shakes that are 3 or 4 to one carbs to protien. For that matter a fruit smoothie with milk might be good also. stationary bike as a sub for running might also help both the day of and the day after the start.