for the past 3 days I have had pain in upper teeth on one side of face swelling also. never had a sinus infection before. I have a tooth that has a route canal that goes into my sinuses. has been there 50 years. I went to my dentist and he xrayed that tooth as that is the most painful. nothing definite but put me on amoxicillin. I got a cold and sinus med from pharmacy to try. I use a nedi pot and do get some relief using that. I have an apt to check out that tooth with a specialist but I have never had this much pain before except when I have had an abcessed tooth. my cold and sinus med has 200 mg of ibuprofen and I was wondering if I could take an advil inbetween the times I take the antibiotic and sinus med.i am 70 years old