How to avoid pain and induration of subcutaneous injection?

1. Choose the right drug: Subcutaneous injection is not suitable for irritating drugs.

2. Avoid repeated injections Repeated injections at one site increase the drug concentration in the local subcutaneous tissue and increase the chance of ecchymosis and induration of subcutaneous injections. Therefore, the site of subcutaneous injection should be changed frequently, and each injection should be at least 2 cm away from the last injection site, and the same site should not be used for injection within two weeks.

3. Use the correct injection method The correct injection method is critical. Such as injection of heparin anticoagulant drugs, the appearance of ecchymosis is related to the angle and depth of needle insertion. Muscular capillaries are rich, and it is easy to form deep hematoma, which will form induration after organization. If the needle is too shallow, the liquid will penetrate into the skin and cause pain and bleeding.

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