### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Had routine "old" cavities replaced in late April.  Very tender/sore gum near one tooth.  Had it re-check a few weeks later.  Dentist performed xray on affected tooth and found nothing. Said my bit was off and did some routine filing of the tooth and said it would be better in a few days.  This week my gum is sore, tooth is sore, cheek is swollen and slightly bruised and I woke up with a small white head on a bubble atop the affected tooth

### output:

Hi, Welcome To Chat Doctor. I had gone through your question and understand it. Sore of gums and tooth can occur due to many reasons such as use of certain medications, poor nutrition, presence of bacteria /virus, use of citrus food and cheek biting. As you are saying you had gone through the treatment of cavities, so soreness can occur due to allergic reaction to medication which was used in the treatment of your cavity. Your cheek has become bruised might be because of cheek -biting. If I was your treating doctor, I would definitely advise you the following things which are very helpful to relieve from sore gums.1) Avoid hot beverages and food as well as salty, spicy and citrus food.2) Use pain relievers like ibuprofen (if no allergy) 600 mg, at the interval of 7-8 hours 3 times in a day for 3 to 5 days.3) Gargle with cold water and suck ice cubes.4) Chat Doctor. 5) Use a topical corticosteroid preparation such as Triamcinolone dental paste, which protects the sore inside the lip and on the gums. I wish this information will resolve your query and other questions are also welcome. Wish you good health. Take Care, Thank From:- 