<s>[INST] My teeth and gums on one side of my mouth are aching really badly. I think it is a sinus or allergy problem as the pain comes and goes. Sometimes it gets so bad that it wakes me up in the middle of the night. Any ideas of what is causing this and how to alleviate the pain. [/INST] Thanks for your query, I have gone through your query. The pain in the teeth and gums could be because of the gum infection or tooth infection. The pain in the night is characteristic feature of pulpits(tooth infection). Consult your oral physician and get a radiograph done to rule out any infection. If it is gum or tooth infection You can take a course of antibiotics like amoxicillin 500 mg and metronidazole 400 mg TID for 5 days(if you are not allergic).  After taking antibiotics you can get the tooth treated with RCT(if bone support is fine) for tooth infection. If it is gum infection then get your teeth cleaned once and maintain the oral hygiene. If needed grafts can be placed to make the tooth firm. Do saline gargling. I hope my answer will help you, take care. </s>