Phlebitis after infusion should immediately stop infusion, hot compresses, topical mucopolysaccharide polysulfate cream, etc., the specific treatment should follow the physician’s instructions. Some people may have phlebitis after infusion due to the stimulation of blood vessels by drugs, which may cause redness and pain in the veins, in which case the medical personnel should be notified to stop the infusion immediately, remove the needle, apply hot compresses with hot towels, and use mucopolysaccharides polysulfate cream externally on the affected area, or apply magnesium sulphate wetly. If you need to continue intravenous infusion treatment need to change the infusion site, or change to deep vein infusion. Phlebitis after infusion is usually improved by symptomatic treatment, but there are cases of vein stiffness and infection, which need anti-infection or even surgical treatment if necessary. The specific management of phlebitis should be carried out under the guidance of a physician.