When the needle is bulging, stop the drip immediately. If the drip is a non-corrosive liquid, a hot towel can be used to apply a wet compress; if it is a strong corrosive liquid, an incision may be needed. Drum needle is in the intravenous infusion, the needle is not in the blood vessels, resulting in the infusion of liquid did not enter the blood vessels, into the subcutaneous, the infusion site appears to be swollen. After the bulging needle, if the liquid for intravenous drip for the tissue is not corrosive to the conventional drugs, generally do not need to carry out special treatment, the local can use hot towels or magnesium sulfate for wet compresses to promote the absorption of local liquid. If the liquid for intravenous drip is a strong corrosive drug to the tissue, such as part of the chemotherapy drugs, etc., then you need to make incision and drainage under the guidance of the doctor and other special treatment. Don’t panic when bulging needles appear, forbid rubbing the swollen parts with force, explain the situation to the doctor immediately, judge the current situation under the doctor’s guidance, and carry out the next operation reasonably.