bacterial infection
"Started taking this 4 days ago, 300mg 3x daily.  After 1 day the swelling started to go down and by day 4 the swelling is gone.  After 2-3 days the pain subsided  (it is still there, but a LOT less severe).  But as the pain subsided, in came the nasty taste in the mouth.  I tried mouthwash (doesn't help)... I've tried drinking plenty of water (doesn't help)... and I've tried gum (works temporarily but as soon as the gums out of the mouth, the taste comes back and my jaw starts hurting when I chew it."