If you were to do this, you could cause a lot of damage to your gums, and it can even hurt the tooth itself that was originally aching. If you want to use aspirin to help with a toothache, take it like you would take any over the counter medication, and swallow it.
How Aspirin Could Harm Your Mouth
Aspirin is an acid. It helps alleviate pain and it thins the blood, but it is an acid. If you were to put that acid on the gums next to your tooth, it could cause burns to your gums.
If you were to place the aspirin on the tooth itself, the acids would not only erode your enamel, but the acid would also enter the pores of your tooth, and it could damage the nerve of your tooth.
If you happen to have receding gums, then placing an aspirin against the tooth could also expose the root of your tooth to become damaged by the acid, and it could even kill your tooth if you exposed it to enough of the acid.
When taking aspirin to help with a toothache, swallow the aspirin and let it help reduce your pain. The only time it should be in your mouth is on its way down to your stomach. Make sure that you call your dentist about getting seen as soon as your toothache starts.
That way, your dentist can take a look, figure out what is wrong, and fix the problem up for you. Contact our office for more information or if you have any questions.