How do you reduce swelling after a missed intervenous injection?

To reduce swelling after a missed intravenous injection, first apply a cold compress to the affected area for 15-20 minutes to help constrict blood vessels and reduce inflammation. Elevating the limb can also assist in decreasing swelling by promoting fluid drainage. Over-the-counter anti-inflammatory medications, like ibuprofen, may help alleviate discomfort. If swelling persists or worsens, consult a healthcare professional for further evaluation.