Nothing at all? Have you tried pumping on that side? I know they say the fastest way to clear the infection is to get the milk moving on that side. I remember when I had it with dd, when it cleared it felt like a damn broke and there was relief soon afterward. But I think mine was a mild case.
Warm showers, massage the breast while nursing. I'm sorry, I know you must be in tons of pain. I hope it clears up soon!