Toothache cotton plugs generally can not be removed on their own. 1. toothache plug cotton mainly through the absorption of drugs to relieve toothache symptoms, if there are obvious symptoms of toothache, you can use the plug cotton treatment, but remove the cotton before it is best to consult a doctor, it is best not to take out on their own, the process of taking out on their own may cause irritation to the cavity, resulting in bleeding. 2. If the cotton wool is placed for too long without removing, it may lead to decay symptoms, but also may lead to infection, so you need to consult a doctor in time. Usually need to pay attention to do a good job of personal oral care health care work, maintain good eating habits, light diet, it is best not to often stimulate the cavity.