Watermelon Frost
This has been used traditionally in Chinese medicine for curing canker sores, and even though there are no clinical studies that have established watermelon frost as a cure for canker sores, you can try it out. You might not get watermelon frost locally, but you can order for it online. You should, however, be careful when purchasing things like this online so that you don’t buy fake products. Watermelon frost comes in powder, tablet or spray form and you can apply it directly to the canker sore to relieve the pain and speed up the healing process.[6]
