When swelling occurs on the back of the foot, the cause needs to be clarified first. If the swelling of the dorsum of the foot is caused by trauma, local ice can be applied within 48 hours. Ice towels or frozen mineral water wrapped in towels can be used to apply ice to the affected area to promote capillary constriction and reduce bleeding, thus reducing swelling. It is also necessary to elevate the patient to promote venous reflux. After 48 hours, it can be changed to hot compresses to improve blood circulation in the foot and promote the swelling to subside, and it can also be combined with physiotherapy and massage, which also have very good effect. You can take oral Chinese medicines to reduce swelling and pain, such as Pan Long Qi Tablets and Compound Pain Capsules. If the swelling of the back of the foot is of cardiac or nephrogenic origin, oral diuretics, such as furosemide, can be taken to reduce the swelling by diuresis. If the swelling does not subside for a long time, you need to go to the hospital for examination and consultation in time to clarify the cause and treat it according to the disease.