Frequent mouth ulcers are very common and highly manageable. To ease pain and speed up healing, you can apply topical generic treatments like lidocaine gel or triamcinolone acetonide dental paste directly to the sores. For prevention, switch to a sodium lauryl sulfate (SLS)-free toothpaste, use a soft-bristled toothbrush, and avoid acidic, spicy, or sharp foods. Since they recur every few weeks, it is a good idea to visit a doctor for a simple blood test to check for vitamin deficiencies (such as B12, folate, or iron) or discuss stress management, as these are common, easily treatable triggers.