I’ve strained a muscle! Now what?
It is recommended to treat the strain with ice the first day, and then treat it with warm compress for the next couple of days. Apply the warm compress a couple of times a day for 15-20 minutes. There is also a Voltaren cream, that might help. Also I recommend the increased ingestion of vitamin C, because it is necessary for collagen synthesis. This also means a gym break for as long as the muscle is still injured.