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

### input:
I had some bleeding when brushing my teeth (very unusual for me) I thought it may be an alergy to a new toothpaste i started using.. Pronamel my teeth became so sensitive i had to use a staw to drink everything..(hot or cold) then i woke one morning my whole face was swollen.when to ER..and was diagnosed/treated for a sinus infection ..some swelling went down and I noticed a bump over one of my front teeth..pussey at times..I have since seen Doctor and dentist ..taken several rounds of Penicillen and Amoxicillian (?) and now on my 4th round of Doxycycline ..that seems to help the most(no puss now) just a red bump still remains. My dentist said I may need root canal or just rootcanal therapy..to see if if goes away with these anibiotics ..if not to follow up with the root canal..ithink I may have cracked a tooth while eating (like biting onto a grain of sand) about 6 months ago..

### output:

Hello, Bleeding during brushing and flossing suggests gingivitis. Plaque and food accumulates in relation to teeth cause gingivitis. Gingivitis can also occur because of vitamin C deficiency. To avoid bleeding during brushing, it is important to brush and floss regularly and maintain a good oral hygiene to avoid deposits around teeth. You can also use a mouth wash to reduce bacteria in your mouth. Mouth wash is a chemical adjunct to plaque removal.  If gums are swollen, then you can do warm saline rinses 3-4 times a day. Take more of lemonades and citrus fruits or vitamin C supplements if there is deficiency of vitamin C present. Without clinical examination, it is difficult to give definite diagnosis. You can refer to an oral surgeon or a pathologist if you are apprehensive.