It's important to know why you have a toothache. You should be visiting your dentist on a regular basis. If your tooth starts to hurt in the typical way with sensitivity to cold or heat and then progresses, it's a sign that there might be some damage to the nerve inside the tooth. It's very important to get that checked out with a dentist, because there is nothing you can really do about it. If you have a lot of teeth that are sensitive to cold, you can get a sensitive toothpaste, but if you really just have a toothache, you need to go the dentist because it's typically either a problem with gum disease or with the nerve inside the tooth. An antibiotic may mask it for a while, but the real problem needs to be addressed.
