Honey
Honey contains a lot of anti-inflammatory and antibacterial properties. Many studies have shown that it can be used to reduce the pain, redness, and size of mouth sores. More importantly, you can use honey to deal with a secondary infection. All you need to do is to apply it directly to the affected areas around 3 to 4 times on a daily basis. Keep in mind that not all honey is created equal. Some products at the supermarkets or stores are already pasteurized at high temperatures, which would destroy most of the nutrients. Make sure to go for unfiltered and unpasteurized options to maximize its healing components. [3]