A mouth ulcer that wont heal could be serious., Most ulcers are harmless, but persistent ones may signal oral cancer symptoms. Early detection ensures simpler treatment, faster recovery, and better Some everyday items need a second look before you travel. Aerosol sprays, camphor blocks, and matchsticks are restricted due to safety concerns and are not permitted in cabin or check in baggage. A Potential Association Between Vaping and Recurrent Aphthous Stomatitis: A Case Series Cureus It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center Is Vaping Bad for Your Oral Health? Gentle Dental Family Care