For your own sake be very careful with this injury. I had the exact same thing happen several MONTHS ago and it's still not right. If I had taken more time off initially instead of "training through it" I'm sure it would have healed a long time ago. As it is, I now wear a stiff brace (think roller blading) when I train and will only train the one side for certain techniques. I have made a promise to myself that I won't use it 100% in class until I've had at least 2 weeks of zero pain and that has yet to happen...
Think long term. Good luck!