My ear REALLY hurts. It's something to do with pressure. Please help me?

I went to bed last night after taking a shower and woke up at 3 AM with a splitting pain in my left ear. I am taking antibiotics for strep throat, in case that helps. I’ve tried taking a shower and doing the salvasa maneuver and am chewing gum right now but all it does is makes a tiny little pop and still does nothing for the pain. I can hardly hear out of it.