The enlargement of lymph nodes after wisdom tooth removal may be caused by periapical gingivitis. This is also normal, but not very likely to occur. In this case, the first step should be to use sensitive antibacterial drugs, such as oral cephalosporins and combined metronidazole. Severe patients can also be given intravenous fluids, choosing ceftriaxone or metronidazole injection. At the same time, after wisdom tooth removal, you should also pay attention to personal oral hygiene, eat a light and liquid diet, avoid spicy, greasy and other irritating foods, and pay attention to rinsing your mouth after meals. In this case, it can be gradually relieved after the above treatment. If the symptoms worsen and become more severe with subcutaneous and submandibular cellulitis, surgical treatment may also be considered.