If you have a toothache with a cold and half of your face hurts, it may be the result of an acute attack of a dental disease, such as pulpitis, wisdom teeth pericoronitis, etc. It is recommended that you treat the cold and also treat the toothache in your mouth. 1. After catching a cold, it is recommended to go to the internal medicine department or respiratory medicine department, and give the corresponding anti-infection treatment, pay attention to rest, and replenish water. 2. In the treatment of cold and flu at the same time, you can go to the stomatology department, by the physician examination after a clear diagnosis, if it is endodontitis, root canal treatment, the infected pulp and dentin wall as much as possible to remove clean, and then filling treatment; if it is a wisdom tooth peri-coronitis, the acute stage is recommended to local peri-coronary rinsing, combined with oral cephalosporins and nitroimidazole antibiotics, and to be relieved when the symptoms are extracted. It is recommended to go to a regular hospital to avoid delaying the condition.