Article in English: Some natural remedies are quick and easy to make using ingredients you probably have in your pantry. Others, while easy, may either require ingredients only available at specialty food stores or may take time to prepare.  Try various home remedies until you find the ones that work for you. Be aware of any food allergies or other sensitivities you may have before trying any home remedies. You may also wish to run it by your doctor before you try a home remedy. This method is the fastest way to pain relief, although the relief may be temporary. Allowing ice chips to slowly dissolve over the sores will temporarily numb the area and may reduce the inflammation. Osmosis occurs when the inside of a cell has a lower salt content than the outside. Water, or excess fluid, is drawn out of the cell and swelling goes down, easing discomfort.  Salt is an antiseptic, so it will help to keep the area free of bacteria to promote healing. Try a baking soda rinse instead, using 1 teaspoon of baking soda dissolved in 1/2 cup warm water. Sage has long been used in ancient cultures for cleansing and healing of mouth ailments. Mix 2 teaspoons dried sage with 4–8 ounces of fresh water and boil for 10 minutes. Let it cool, then swish the rinse in your mouth for one minute. Spit it out and rinse your mouth with cold water. Alternatively,combine a handful of fresh sage with 4–8 ounces of water. Store in an airtight glass jar in a cool dark place for 24 hours. Remove the sage and swish only the infused water in your mouth for one minute. Aloe’s sunburn-soothing properties are well known, but this plant can also ease the pain of a canker sore. Mix 1 teaspoon of natural aloe vera gel with 1 tablespoon of water and swish it in your mouth three times a day.  Be sure to use natural aloe vera gel. Try using aloe vera juice as a rinse. Coconut oil is an anti-inflammatory, which not only helps with healing, but may reduce pain. Use a cotton swab or clean hands to apply a liberal amount of coconut oil directly onto the mouth ulcer to ease pain...

Summary in Vietnamese:
Xác định nên chờ bao lâu để cơn đau giảm bớt. Chườm đá viên lên vết viêm loét. Pha nước muối kháng khuẩn. Súc miệng bằng nước xô thơm sấy khô. Súc miệng bằng lô hội để xoa dịu cơn đau. Sử dụng dầu dừa. Sử dụng “kem” ớt Cayenne. Nhai lá húng tây kháng viêm. Dùng bông tẩm dầu đinh hương. Chườm trà hoa cúc để xoa dịu cơn đau. Dùng tinh dầu tạo dung dịch xịt gây tê.