I am 49 years old. I was suffering from allergic cough since january. After having medicines it is reduced but not cured. Before 20 days I felt swelling under my face and there was pain also doctor asked for x-ray and told it is reactive lymphadenitis due to my one teeth having cavity. The teeth exerted before 14 days the swelling is decreased but still feeling something tough there and for five days my one of the leg is also swelling and having pain in that. Are the all symptoms are related to each other, is anything serious there, plz guide me.