In case of extravasation, the infusion should be stopped immediately and the needle should be removed quickly, and the infusion site should be pressed until it stops bleeding. Within 48 hours of extravasation, the site should be elevated and a cold compress can be applied to constrict the local blood vessels and numb the peripheral nerves to reduce pain to some extent, but attention should be paid to the temperature to prevent frostbite. The specific treatment method also depends on the specific drugs and cannot be generalized. If it is a toxic chemotherapy drug such as vincristine, it is more suitable for cold compresses; if it is a drug such as dopamine or potassium chloride that has leaked, it is more suitable for hot compresses. In short, the treatment of intravenous infusion extravasation should be flexible, according to the specific drugs to carry out appropriate treatment.