Depending on the medication prescribed, you will need to give yourself an injection with a pen once daily, twice daily or once per week
Step 9: Apply gentle pressure Press a clean cotton ball or alcohol swab lightly against the injection site for 10 to 15 seconds
What changes is how you choose the spot
Rare side effects of B12 shots (require medical attention) Serious reactions to B-12 shots are uncommon, but its important to be aware of them: Allergic reaction, including rash, hives, dizziness, or trouble breathing Significant swelling, pain, or warmth that worsens at the injection site Palpitations or chest discomfort Signs of drug interactions, especially if you take multiple prescription medications If you experience symptoms that feel intense, progressive, or unusual, you should contact your provider right away