When a tooth has a rotten hole, treatment measures such as removing embedded food, removing the nerve of the tooth, or extracting the tooth are selected according to the location and depth of the rotten hole. 1. Removal of embedded food: For pain caused by the accumulation of food debris in the cavity, it is necessary to remove the embedded food and then fill the cavity. 2. Nerve removal: For pain caused by pulpitis, the nerve can be removed under local anesthesia, and the tooth pain will be relieved, followed by root canal treatment at a later stage. 3. Tooth extraction: there is a rotting hole at the bottom of the tooth, it is not meaningful to keep the tooth, in this case, the tooth will be extracted in time, and the pain can be relieved. Tooth rot a hole, timely to the hospital examination, clear the location and depth of the hole, choose the best treatment program, so as not to delay the condition.