Gum swelling and pain leading to half of the face pain indicates that the symptoms are more serious and there may be acute inflammation, such as acute gum inflammation, acute periapical inflammation, etc., which need to be treated promptly. Common treatments include medication, local rinsing, abscess drainage, root canal treatment and daily care, etc. 1. medication: oral anti-inflammatory drugs such as cephalosporins and penicillins, combined with metronidazole and tinidazole; 2. local rinsing: repeated rinsing of the gum sulcus with hydrogen peroxide, rinsing with chlorhexidine rinse and applying iodoglycerin to accelerate the improvement of inflammation; 3. abscess drainage: if there is a gum abscess 4, root canal treatment: If the gum swelling and pain is caused by periapical inflammation, root canal treatment can be used to remove the infection and fill the root canal, and regularly do crown restoration treatment; 5, daily care: daily oral hygiene should be maintained, brush and rinse regularly after meals, pay attention to a light diet, supplement vitamin C, improve body resistance and mucosal tissue repair ability, promote pain symptoms Avoid strenuous exercise to prevent aggravating the pain. When the symptom appears, local ice can be used to reduce the discomfort.