After wisdom tooth extraction, in most cases, it is not necessary to hang a bottle. However, the need to hang a bottle needs to be decided according to the complexity of wisdom tooth extraction, the degree of obstruction of wisdom teeth, the size of trauma, physical condition and other factors, as follows: 1, no need to hang a bottle: wisdom teeth in the case of complete eruption, extraction trauma is relatively small, postoperative only need to pay attention to rest, pay attention to protect the wound can be, complex need to cut the gums, suture and other cases, postoperative also only need to take oral anti-inflammatory The most common anti-inflammatory drugs are metronidazole, amoxicillin, cephalosporin, and painkillers such as ibuprofen, etc. 2, need to hang a bottle: for particularly complex wisdom tooth extraction, the operation needs to cut open the gums, but also need to remove part of the alveolar bone, etc., the post-operative reaction is heavy, possibly accompanied by facial swelling, mouth opening restrictions, etc., in these cases can be considered hanging water for about three days, which is conducive to In these cases, you can consider hanging water for about three days to facilitate the recovery after surgery, and you can also cooperate with physical methods such as cold compresses and hot compresses after surgery to reduce postoperative reactions and promote healing.