But after the pus is discharged, you should thoroughly treat this tooth and treat it with left root canal ~!
If the teeth are a little loose, the gums are a little atrophied, or the periodontal pocket is deep, and the abscess range is relatively large, it may be periodontal abscess caused by periodontal disease, and you need to go to the stomatology department to cut and drain pus, but if the teeth are not involved, you don't need to treat the teeth, just take some anti-inflammatory drugs ~!
If pus is not ruled out, it doesn't matter what you eat to reduce inflammation ~!