Hi, my three year old daughter has been a bit out of sorts and appears to be uncomfortable in her mouth.  It seems she has all her teeth so cant be teething but I noticed a small white raised dry area on the inside of her cheek.  The outside of her cheek is often red and hot too.  What could it be?
It seems like a case of cheek biting. Start your child on warm saline mouth rinses 3-4 times a day. Also, she could apply McCoppin gel on the area before eating. Make sure she spits it out and doesn't ingest the gel. Start on her a multivitamin syrup once daily. If this doesn't resolve in a week to ten days or any new symptoms show up, It's advisable to see a pediatric dentist/ maxillofacial surgeon.