I am f 36. I had root canal done in 2/3 2/4 after 1 week, I had painful cysts around my ear, on forehead and in scalp which I thought is because of tooth infection, and pink eye on the left. But after 2 days, it has started around right ear also. Small cyst, swelling and pain. I consulted a family dr, he prescribed cepodem xp 325, chymoral forte and metrogyl yesterday. I don't know what it is. Pls help.