Because damage to blood vessels cannot be repaired and can leave scarring or thrombotic superficial phlebitis, patients who require long-term infusions should minimize vascular damage from the beginning and protect the vessels as much as possible. For example, follow the principles of puncture, gradually start using the vessel from the distal to the proximal part of the body, and improve the success rate of venipuncture and reduce repeated punctures. If possible, an indwelling needle or deep vein placement should be used. Also, after each puncture and removal of the needle, prolonged pressure should be applied to avoid local bleeding that can cause subcutaneous bruising, which can result in a local inflammatory reaction, endovasculitis or scarring and sclerosis of the surrounding tissue, and Xanax ointment can be applied after each injection. You can apply hot compresses or physical therapy to promote local blood circulation.