Not from brushing: The sore has nothing to do with you brushing her teeth. She may have bit her lip in her sleep, she may have a cold sore. Hard to tell over the internet. But her pediatrician who can take a look can tell you what it is.
Answered 7/5/2018
5.1k views
Probably viral: This probably has nothing to do with your healthy habit of regular toothbrushing one of the most common childhood infections in wisconsin now is herpangina (aka hand-foot-mouth disease) commonly causes mild cold symptoms and sores in mouth. Also possible she has a canker sore (aphthous stomatitis) neither are dangerous and will both go away with time. Ibuprofen can be helpful if bothers her.
Answered 2/2/2015
5.1k views
Probably transient: Probably viral (aphthous ulcer) or traumatic lesion (kids get bumped all the time). But just to make sure, call your pediatric dental specialist (who you should have been seeing since age 1) and ask him to take a look.
Answered 2/2/2015
5.1k views
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