After my son was out a month for shoulder muscle strain he started doing the Throwers 10 program every day. This helped him, I believe, recover fairly well.
He still used this program and will continue even through football season since he is the QB.
I also bought a shoulder ice wrap that he will wear after the game as well as take 3 Ibuprofren for the inflammation of his muscles.
Another part of the arm health program should be watching pitch count and rest between outings.