I am having tooth decay near my lower left wisdom tooth. It's turned black and some yellow on it. Also pericoronitis over there. It pains sometimes. But not too much. I ignored it for 6 months as the pain wasnt regular and severe. But recently a month back I discovered my left tonsil is swollen at its end. Can the tonsils swelling be because of the tooth decay . Also the toothace is a little more. Sometimes in left upper teeth as well. But left jaw and ear is paining more. Unable to sleep on that jaw. Submandibular lymph node swollen on left side. Took dosage of augmentin for a week but no change in condition. Please help. I am a smoker as well. Please help.