Before using the insulin syringe, the patient should wash their hands, check the type of insulin and the injection dose, exhaust the air in the syringe, choose the part with more subcutaneous fat, such as the two sides of the abdomen, the upper outer part of the thigh, etc., and disinfect the skin with alcohol cotton balls , After the alcohol is dry, use your thumb, index finger, and middle finger to pinch the injected skin, insert the 4mm needle vertically, and inject the 6mm needle at a 45° angle, push the liquid medicine, hold for a few seconds, and then slowly pull out the needle, use cotton Ball press, no need to massage the injection site. It should be noted that when injecting insulin, the injection site must be rotated frequently, and the interval between each injection point should be more than 1 cm to avoid repeated injections at the same site, otherwise it will easily lead to local subcutaneous fat atrophy or hyperplasia, which will affect the absorption of insulin. In addition, avoid wiping the needle tip with alcohol-based reagents. Alcohol will strip the coating of the needle tip, make the needle core rough, and increase the pain during injection.

For unopened insulin, it can be stored at room temperature in a cool and dry place below 25 degrees Celsius, avoiding light and heat. The shelf life of insulin stored at room temperature after opening is generally not more than 4 weeks. If the insulin is unopened and will not be used in a short period of time, it is recommended to store it in the refrigerator at 2-8 degrees Celsius, and not in the freezer. Do not place it in the refrigerator close to the wall of the refrigerator, otherwise the insulin may be destroyed due to freezing; also do not place it next to the refrigerator door. Repeated opening and closing of the refrigerator door will cause the insulin to vibrate repeatedly, which will affect the insulin titer and reduce the hypoglycemic effect.