Toothache the next day half swollen need dental treatment, along with systemic anti-inflammatory. Swelling of the face due to toothache is a manifestation of maxillofacial interstitial infection. Dental caries after not timely treatment, bacterial infection leads to pulp tissue suppuration, inflammation can not be drained will be through the skin to the external discharge of pus. Infection of the maxillofacial space appears face swelling. Severe cases can also cause limited mouth opening or even sepsis. Prompt dental treatment is required. Emergency treatment is to open the pulp cavity to drain the inflammation. The systemic anti-infective treatment is also used. You can use penicillin under the guidance of the physician, but also with the use of metronidazole. Toothache and face swelling need timely dental treatment, as soon as possible to the stomatology department for medical treatment.