Came to the site for canker sore remedy/ies. Decided to try aspirin (apple cider vinegar would make it worse) but didn't have any on hand. Aspirin and ibuprofen are both NSAID's. Used ibuprofen instead and instant relief. Repeated as necessary. The next day sore was in advanced stage of healing.
Thank you!!!! This afternoon a canker sore became incredibly painful. Tried salt water. Tried lisine. Came here and tried Apple Cider Vinegar. All either did nothing or made it hurt more. Kept reading here and saw all the good aspirin reports. Didn't have aspirin so I used ibuprofen instead. Oh my goodness, it's now numb. No pain at all. Even if it doesn't last, a bit of relief is a godsend!