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

### input:
On and off for about 4 months I have had a swollen tongue with tooth indents, it burns and now I also have a sore which looks like a raw spot about 1 cm in diameter.  My doctor drew blood and the test for thyroid, kidneys, etc... came back fine.   I would be interested in your thoughts.  Thank you.

### output:

Hello, Swelling of your tongue over all may indicate an allergic reaction or an infection. If the swelling is in one area, this may indicate more of a growth, cyst or tumor and should be investigated further with a clinical exam by a dentist or a specialist, an oral surgeon. Try to think about any changes you made about four months ago when you first noticed this problem. Has the amount of swelling changed in the four months? This should include medications, dietary changes, and tooth care products such as toothpaste, rinses, etc. Have you had recent dental work? Materials used or a change in your bite could be a factor. And untreated fungal infection could have an effect on you tongue. The swollen tongue could cause you to rub the tongue against your teeth and cause indents which could then turn into sore spots. Being uncomfortable with your tongue may encourage you to develop some habits. Certain viruses can cause swelling and ulcerated irritations that can recur.  Mouth cancer on the tongue can occur, often along the back border, near the molars. An occurrence here with rapid changes would be of urgent concern. A clinical exam by a dentist would be recommended to evaluate your condition. Medication may need to be prescribed. I hope this answer is helpful and gives you some direction. I am glad to answer additional questions. Thank you for your inquiry.