Since your current gel isn't helping, you can try an oral paste containing triamcinolone acetonide (0.1%), which reduces inflammation and accelerates healing. For pain relief, a topical lidocaine gel can be applied before meals. Rinsing with a chlorhexidine mouthwash also helps keep the area clean and prevents infection. Sometimes, ulcers are linked to nutritional gaps, so taking a B-complex and zinc supplement might help. Meanwhile, avoid spicy, acidic, or very hot foods. If the ulcer does not heal within 10 to 14 days, please consult a healthcare professional for a physical examination.

Mouth blisters, often called canker sores, can be quite uncomfortable. To get relief, you can apply an over-the-counter soothing gel containing benzocaine or choline salicylate directly to the sores. Regularly rinsing your mouth with warm salt water or a baking soda solution (1 teaspoon in half a cup of water) will help reduce inflammation and speed up healing. Avoid spicy, acidic, or very hot foods, as they irritate the blisters. Ensure you stay well-hydrated and consider taking a Vitamin B-complex supplement. If the blisters do not heal within two weeks, are extremely painful, or are accompanied by a fever, please consult a doctor.