Xixiituo is the trade name, its main component is mucopolysaccharide polysulfate, which has the functions of anti-inflammation, promoting the absorption of edema and hematoma, inhibiting the formation and growth of thrombus, promoting local blood circulation and stimulating the regeneration of damaged tissues, which can quickly relieve the pain and pressure, reduce edema and hematoma, and make the heavy feeling of legs disappear rapidly. It is clinically indicated for superficial phlebitis, varicose phlebitis, adjunctive treatment after varicose and sclerosing surgery, hematomas, contusions, swelling and edema, and also for thrombophlebitis, exudation caused by intravenous infusion and injection, as well as for inhibiting scar formation and softening scars. The main precautions in the application of Xanax are that Xanax ointment preparation should not be applied directly to broken skin and open wounds, and that contact with the eyes or conjunctiva should be avoided.