My right lower canine two teeth gum are swollen from last 8-9 days. I didn't remember that brush hits while brushing or not. There is mild pain when press the gum. Color of gum is pink. No other issue. Only swelling is there. I am tobacco user. Also I have chronic bad breath issue. There is no white or red patches in mouth. I want to know why swelling is there. Any thing serious issue. I am in very tense. No to worry. Pls. Reply. I have been diagnosis with gerd.