injection to break down inflammation? - I've heard it works in some cases, mind you I've also heard it is exquisitely painful - so right up your street ;-)
Whenever I've suffered the physio has inflicted the worlds worst pain with their knuckles to massage it away.
It won't ease by itself and will only get worse if you don't look after your calfs. Wear compression socks at all times, good cushioned shoes when training, stair lowers hourly, daily massage, hot/cold shower work, no speed work for a while.
Or take up cycling....;-)