Toothaches may be caused by a variety of problems such as dental cavities, exposed tooth rot, a cracked tooth, gum diseases, and so on. Tips for Toothaches:Eating a raw lime, along with the peel, can offer some much needed toothache relief. The effectiveness of lime for toothaches can probably be best explained by its rich composition of vitamin C and the lower levels of acidity as compared to lemons.Onions are popular as traditional toothache relief treatment and you can simply place a slice over the affected area. Onions are high in sodium, rich in vitamins E and B12, and are low in fat or calories. Including onions in your daily diet and simply chewing on a few slices can help prevent and control toothaches.A clove of garlic with a little rock salt should be placed on the affected tooth. It will relieve the pain and, sometimes, may even cure it. A clove should also be chewed daily in the morning. It will cure the teeth making them strong and healthy.A mixture of a pinch of pepper powder and a quarter teaspoon of common salt is an excellent dentrifice. Its daily use prevents dental cavities, foul breath, bleeding from the gums, painful gums, and toothaches. It cures the increased sensitiveness of the teeth. A pinch of pepper powder mixed with clove oil can be put on the cavities to alleviate the toothache.