Hello, I have a tooth that shoots a sharp pain to my head whenever I suck on it. It's a really damaged tooth, only the outer part remains, the middle part is a huge hole. Lately it has been causing me headaches, and fever too yesterday. After some Google searches, I think there may be an infection? I am planning on extracting the tooth. But is it safe to extract the tooth? Because it is so painful when sucked on, I wonder how painful it will be if the tooth is gone. And can infection go away with tooth extraction? Thank you.