When the foot is broken and there is gas inside, it can be treated by continuous elevation of the affected limb, continuous cold compress and active movement of the ankle joint: First, continuous elevation of the affected limb: continuous elevation of the affected limb can reduce the swelling as soon as possible, which can make the local swelling and pain symptoms ease, and the so-called gas, i.e. the swollen part, will also be reduced. Second, continuous cold compress: the local area can be treated with continuous cold compress, and the local swelling will be significantly reduced after three days. Third, active movement of the ankle joint: it can promote blood circulation, which can improve local swelling and relieve local pain symptoms. Therefore, if you feel air inside after a broken foot, it is actually a manifestation of swelling. After the above-mentioned methods of comprehensive treatment, the local clinical symptoms can be significantly relieved. In addition, the patient should also cooperate with short-term braking and rest, and not weight-bearing activities, otherwise the symptoms will not be relieved, but may be aggravated, affecting normal life and sports.