Swelling and painkillers after foot sprains need to be divided according to the stage of sprains, mainly including the acute and non-acute phases. 1. Acute phase: generally refers to the sprain within 72 hours. Patients at this stage tend to have the most intense pain and the most obvious swelling. The first thing to do is to brake the affected limb, followed by ice packs to reduce swelling, ice packs can make the blood vessels contract, reduce the symptoms of local congestion and edema. Drugs can choose non-steroidal anti-inflammatory such as diclofenac sodium, ibuprofen extended-release capsules, Yunnan Baiyao spray and so on. 2. Non-acute stage: 72 hours after the general swelling began to fall, at this time you can choose the way of hot compresses to reduce swelling, accelerate blood circulation, is conducive to rapid swelling. The choice of medicine can choose safflower oil, Mai Zhi Ling, etc., can increase the elasticity and tension of the vein wall, improve the strength of the blood vessel wall, also help to reduce swelling. All of the above medicines should be used under the guidance of a doctor, avoid self-medication!